HOLY CROSS COLLEGE, (AUTONOMOUS), TIRUCHIRAPPALLI …naac.hcctrichy.in/SSR_IV_CONTENT/Criteria_1/1.1.1...2 define Self inductance and obtain expression for Self inductance of a Solenoid

HOLY CROSS COLLEGE, (AUTONOMOUS), TIRUCHIRAPPALLI-620002.

B.Sc., DEGREE EXAMINATION, SEMESTER – II

MAJOR CORE PAPER II: ELECTRICITY AND ELECTROMAGNETISM

SPECIFIC OUTCOME OF LEARNING

Code:U08PH2MCT02

UNIT –I : ELECTROSTATICS

The student is able to

1. explain the principle of a capacitor

2. derive expressions for the capacity for

a) spherical conductor and (b) spherical capacitor with outer sphere earthed

and inner sphere earthed.

3. derive expressions for the capacity of the cylindrical capacitor

4. derive the expression for the energy stored in a capacitor

5. prove that there is always loss of energy when two capacitors share their charges.

6. explain the principle and working of Kelvin’s attracted disc electrometer and apply it to

determine the dielectric constant of a material in the form of a slab.

7. give the theory of a quadrant electrometer and show the relation between

potential difference between the quadrant pairs and the deflection produced.

8. apply the principle and draw the necessary circuit involving the quadrant

electrometer to measure ionization current.

UNIT : II ELECTROMAGNETISM


1. calculate the magnitude of force on a conductor carrying

current in a magnetic field

2. find the direction of the force from Fleming’s left hand rule

3. define the unit for current - Ampere

4. calculate the field at any point along the axis of a circular

coil and a solenoid carrying current

5. give the theory of a moving coil ballistic galvanometer and explain how the

correction for damping can be applied.

6. define the charge sensitivity of the B.G.

7. give the theory and describe the experiment to determine the absolute

capacity of a capacitor using the B.G.

8. define and explain the Ampere’s theorem.

UNIT III : ELECTROMAGNETIC INDUCTION The student is able to

1. State the laws of electromagnetic induction

2 define Self inductance and obtain expression for Self inductance of a Solenoid

3. define mutual inductance and obtain expression for mutual inductance of a Solenoid inductor

4. define the coefficient of coupling and obtain expression for the same

5. experimentally determine the self inductance of a coil by Rayleigh’s Method

6. experimentally determine the mutual inductance of a coil

7. experimentally determine the self inductance of a coil by Anderson’s method

8. explain how the charge/current grows and decays in a circuit containing C & R and L &

R respectively

9. define the time constant of LR circuit and CR circuit

10. measure the value of high resistance experimentally

11. identify eddy current as induced current

12. analyze the applications of eddy current

13. explain the working of an induction coil

UNIT IV : ELECTRIC GENERATORS AND MOTORS


1. explain the working of an a.c. generator

2. explain the distribution of three phase alternating current

3. explain the working of an d.c. generator

4. differentiate between a dynamo and motor

5. explain how the emf is generated using a dynamo

6. differentiate between an AC & DC dynamo

7. describe the different types of windings used in a dynamo

8. define the back emf

9. describe how the back emf developed in a motor is related to the applied

voltage

10. define the efficiency of a motor

11. distinguish between the three types of motor

12. give the principle of rotating magnetic field

13. explain the working of an induction motor.

UNIT V : ELECTROMAGNETIC THEORY AND ALTERNATING CURRENTS


1. determine the current when an alternating emf is applied to a) resistive b) inductive

c) capacitive circuit and graphically show the variation of current with time

2. find the magnitude of current when AC voltage is applied to a circuit having

a) inductor and resistor b) a capacitor and a resistor and show graphically the variation of

current and voltage with time in each case, find the effective impedance of each circuit

& distinguish between impedance and reactance.

3. analyze the AC circuit having L, C& R in series to

(i) find the condition for maximum current,

(ii) explain resonance,

(iii)draw resonance curves and

(iv) discuss the sharpness of resonance and the Q factor of the coil.

4. analyze a parallel resonance circuit, find the condition for resonance, draw the

resonance curves.

5. explain graphically the response of two magnetically coupled circuits.

6. prove mathematically that electric power consumed over a cycle in AC circuits

with pure inductor or a capacitor is zero and understand the concept of wattless

current.

7. explain the power consumed in a choke coil and define power factor

HOLY CROSS COLLEGE, (AUTONOMOUS), TIRUCHIRAPPALLI-620002.

B.Sc., DEGREE EXAMINATION, SEMESTER – II

ALLIED PHYSICS- III: BASIC PHYSICS-II


CODE: U12PH2ACT03

UNIT – I: ELECTRICITY & ELECTROMAGNETISM


1. define Coloumb’s law and Electric field.

2. define electric field and electric potential

3. define a capacitor.

4. explain the principle of a capacitor.

5. define the capacitance of a capacitor and the unit of capacitance.

6. derive expressions for the capacity of (i)An Isolated sphere and (ii) Spherical

Capacitor

7. derive expressions for the energy of a charged capacitor.

8. prove mathematically that there is always loss of energy when two capacitors

share their charges.

9. define the self and mutual induction.

10. define coefficient of coupling.

11. derive an expression for the coefficient of coupling in terms of coefficient of

self induction and mutual induction.

12. define the time constant for LR circuit and CR circuit.

13. explain growth and decay of current in a circuit containing L and R

14. explain growth and decay of charge in a circuit containing C and R

UNIT – II: ANALOG & DIGITAL ELECTRONICS


1. differentiate between P type and N type semiconductors.

2. explain the formation of P-N junction.

3. explain the action of a p-n junction in the forward and reverse bias conditions.

4. study experimentally the forward and reverse bias characteristics of a junction

diode and represent it graphically.

5. determine the forward and reverse resistances from the characteristic curve of a junction

diode.

6. study experimentally the forward and reverse bias characteristics of a Zener diode and

represent it graphically.

7. explain the application of a Zener as a regulator.

8. explain the action of a junction diode as a rectifier

9. explain the working of a full wave bridge rectifier

10. explain the principle and working of a transistor.

11. construct the basic logic gates(NOT,AND, OR, NOR, NAND & EX-OR) and verify the

working of the gates with its truth table.

12. state and prove De Morgan's theorems.

13. construct all other logic gates using the NAND gate and NOR gate.

UNIT – III: ATOMIC PHYSICS


1. explain the origin of X-rays and its characteristics.

2. define Mosley’s law and explain its importance.

3. highlights the special feature of vector atom model and explain the quantum numbers .

4. state Pauli’s exclusion principle and apply it to account for the number of electrons in

various shells.

5. find the fine structure of Na lines.

6. explain photoelectric effect and state the laws of photoelectric emission

7. explain Einstein’s photoelectric equation.

8. describe and explain Millikan’s experiment.

UNIT- IV: NUCLEAR PHYSICS


1. define radioactivity.

2. explain laws of successive disintegration.

3. arrive at the formula for the number of atoms of the daughter element in successive

disintegration

4. prove the radioactive equilibrium.

5. apply the laws of radioactivity to find the age of earth

6. explain the properties of nucleus.

7. define mass defect and binding energy.

8. define Packing fraction.

9. explain liquid drop models.

10. explain nuclear fission on the basis of liquid drop model of the nucleus

11. derive the binding energy formula

12. explain the Shell model.

UNIT – V: SPECTROSCOPY


1. list out the properties of electromagnetic radiations.

2. explain the theory of a plane transmission grating.

3. differentiate between the prism and grating spectrum.

4. explain the scattering phenomenon.

5. explain the Rayleigh scattering and Raman scattering.

6. deduce the expression for frequency of Raman lines using simple quantum theory.

7. explain the experimental study of Raman Effect.

8. explain and define the terms stimulated emission, population inversion

and meta stable state involved in LASER.

HOLY CROSS COLLEGE (AUTONOMOUS), TIRUCHIRAPPALLI – 2.

DEPARTMENT OF PHYSICS

SEMESTER –IV

MAJOR CORE-6: OPTICS AND SPECTROSCOPY


CODE: U08PH4MCT06

UNIT I : GEOMETRICAL OPTICS


1. explain the refraction of light.

2.explain how deviation is produced by a thin lens.

3.define the term aberration and can distinguish between chromatic aberration and spherical

aberration.

4.obtain the condition for minimum spherical aberration of two thin lenses separated by a

distance.

5.explain the various means of reducing spherical aberration.

6.define the terms longitudinal chromatic aberration and lateral chromatic aberration.

7.define the term achromatism in lenses.

8.explain the various ways of achieving achromatism in single lens and in a combination of

lenses.

9.explain the advantages of using two lenses in an eyepiecie rather than using a single lens.

10. explain the construction and working of Huygen’s and Ramsden’s eyepieces.

11. explain how aberrations are overcome in Huygen’s and Ramsden’s eyepieces.

12. explain the terms positive eyepiece and negative eyepiece.

13. compare the advantages and disadvantages of Huygen’s eyepieces and Ramsden’s

eyepieces.

UNIT II: INTERFERENCE OF LIGHT


1.define the phenomena of interference of light.

2. explain how interference takes place in thin films due to reflected light and give the

conditions

for constructive and destructive interference.

3. explain how interference takes place in a wedge shaped thin films and she can discuss the

condition for constructive and destructive interference.

4. determine experimentally the thickness of the given wire by forming air-wedge.

5. explain how the optical planeness of a surface can by tested by forming fringes in a wedge

shaped thin film.

6. explain the construction and working of Michelson’s interferometer.

7. explain how the wavelength of monochromatic light and difference in wavelength between

two neighbouring lines can be determined using Michelson’s interferometer.

UNIT III: DIFFRACTION OF LIGHT


1. define the term diffraction of light.

2. give the theory of plane transmission grating and derive the grating formula for normal

incidence.

3. explain the formation of spectrum by a grating.

4. describe the experiment to determine the wavelength of spectral lines using a grating.

5. arrive at the grating formula in the case of oblique incidence.

6. explain the situations of overlapping and absent spectra.

7. define the terms ‘dispersive power’ and ‘resolving power’ and derive the expressions for

the same.

8. compare the prism spectrum with the grating spectrum.

9. determine the maximum number of orders possible by using grating with a known number

of lines/m on the grating and using a source of known wavelength.

UNIT IV: POLARISATION OF LIGHT


1.explain the transverse nature of light.

2.define the terms ‘polarisation’ and ‘double refraction’.

3.explain how Huygen explained double refraction.

4.give the construction of nicol prism.

5.define the terms ‘optic axis’, ‘principal section’ and ‘principal plane’ in a crystal.

6.distinguish between the various types of polarization namely plane polarized, circularly

polarized and elliptically polarized light.

7.discuss how plane polarized light, circularly polarized light and elliptically polarized light

can be produced and analysed.

8.explain the meaning of quarter wave plate and half wave plate.

9.explain the term ‘Rotatory polarization’.

10. understand Fresnel’s explanation of optical rotation.

11. define the term specific rotation.

12. explain about Laurent’s half shade and its function.

13. explain how the specific rotation of sugar solution can be found.

by a polarimeter which uses Laurent”s Half shade.

UNIT V: SPECTROSCOPY


1. give an account of various IR radiation sources.

2. give the working of different detectors.

3. explain the action of dispersing system.

4. mention the uses of IR spectroscopy.

5. explain about the scattering of light and distinguish between coherent scattering and

incoherent scattering of light.

6. define Raman effect.

7. explain Raman effect using simple quantum theory.

8. explain the experimental techniques used to study Raman effect.

9. mention the applications of Raman effect.

HOLY CROSS COLLEGE (AUTONOMOUS), TIRUCHIRAPPALLI

DEPARTMETNT OF PHYSICS

B.Sc., (PHYSICS) & B.Sc., (PHYSICS WITH SPECIALISATION IN ELECTRONICS)

SEMESTER IV

MAJOR ELECTIVE- I: BASICS OF DIGITAL ELECTRONICS

Code: U08PH4MET01


UNIT :I NUMBER SYSTEMS, CODES AND LOGIC GATES.


1. do the binary addition.

2. do the binary subtraction using 1’s complement and 2’s complement method.

3. convert the given decimal number to the equivalent binary number.

4. convert the given binary number to equivalent decimal number.

5. convert the given octal number to the equivalent decimal number.

6. convert the given decimal number to the equivalent octal number.

7. convert the given hexadecimal number to the equivalent decimal number.

8. convert the given decimal number to the equivalent hexadecimal number.

9. write any number in the BCD form.

10. write any number in excess-3 code form.

11. draw the inverter circuit.

12. analyse the working of AND, OR,EX-OR, NAND and NOR gates using the truth tables.

UNIT: II BOOLEAN ALGEBRA AND METHODS OF REDUCTION OF BOOLEAN

EQUATIONS.


1. state the rules and laws of Boolean algebra.

2. state and prove De Morgan’s theorems.

3. explain the working of NAND and NOR gates as universal building blocks.

4. write Boolean expressions for gate networks.

5. simplify the given Boolean expressions using the rules and laws of Boolean algebra.

6. represent the given expression by AND-OR network.

7. implement the given expression in the sum of products form using NAND-NAND

network.

8. simplify the given Boolean expression using Karnaugh map.

UNIT: III ARITHMETIC,COMBINATIONAL AND SEQUENTIAL CIRCUITS


1 draw the logic circuit and explain the working of a half adder.

2 draw the logic circuit and explain the working of a full adder.

3 draw half subtractor circuit and explain its working.

4 explain the function of decoder.

5 explain the function of encoder.

6 explain the working of multiplexer.

7 explain the working of demultiplexer.

8 explain the working of SR flip flop.

9 explain the function of JK flip flop.

10 convert JKflip flop to T flip flop.

11 explain the concept of edge triggering.

12 explain the working of Master-Slave flip flop.

13 differentiate between sequential circuits and combinational circuits.

UNIT: IV COUNTERS AND SHIFT REGISTERS


1. draw the asynchronous counters using JK flip flops.

2. explain the working of synchronous counters.

3. explain the construction of decade counter.

4. explain the working of up-down synchronous counter.

5. explain the working of shift registers and the functions of series and parallel shift

registers.

UNIT :V ADC AND DAC


1. explain D/A conversion through resistive divider method.

2. explain the binary ladder method of D/A conversion.

3. analyze D/A conversion circuit using D/A performance characteristics.

4. explain how A/D conversion is done in successive approximation method.

5. explain how A/D conversion is done in counter method.

6. explain accuracy and resolution for A/D conversion

HOLY CROSS COLLEGE (AUTONOMOUS), TIRUCHIRAPPALLI-2


SEMESTER IV ,ALLIED PHYSICS (OPTIONAL)-6

ALLIED PHYSICS -PAPER III:SPECTROSCOPY, ELECTRICITY AND

ELECTRONICS (SHIFT I AND SHIFT II)


Code : U13PH4AOT03

UNIT – I SPECTROSCOPY


1. list out the properties of electromagnetic radiations.

2. explain the theory of a plane transmission grating.

3. differentiate between the prism spectrum and grating spectrum.

4. explain the scattering phenomenon.

5. explain the Rayleigh scattering and Raman scattering.

6. deduce the expression for frequency of Raman lines using simple quantum theory.

7. explain the experimental set up for the study of Raman effect

8. define the terms “ stimulated emission, population inversion”.

9. explain the meta stable state involved in LASER. .

UNIT - II: ELECTRICITY


1. explain the principle of a capacitor.

2. define the capacitance of a capacitor and the unit of capacitance.

3. derive the expressions for the capacity of a (i) Spherical conductor and (ii) spherical

capacitor.

4. derive expressions for the energy stored in a capacitor.

5. prove mathematically that there is always loss of energy when two capacitors

share their charges.

6. determine the energy stored by a capacitor for given any two values among C, V, Q,.

7. explain the experiment to compare the capacities using De Sauty’s bridge method.

8. describe the experiment to determine the absolute capacity of the capacitor using B.G.

UNIT III ; ELECTROMAGNETISM


1. define the self and mutual induction.

2. define coefficient of coupling.

3. derive an expression for the coefficient of coupling in terms of coefficient of

self induction and mutual induction.

4. explain the theory & experiment to determine the coefficient of self induction of a coil by

Anderson’s method.

5. explain the experiment to determine the coefficient of mutual induction by Rayleigh’s

method.

6. define the time constant for LR circuit and CR circuit.

7. explain how current grows in a circuit containing L and R

8. explain how current decays in a circuit containing L and R.

9. explain how charge grows in circuit containing C and R.

10. explain how charge grows in circuit containing C and R.

UNIT - IV: ELECTRONICS


1. differentiate between P type and N type semiconductors.

2. explain the formation of P-N junction.

3. explain the action of a p-n junction in the forward and reverse bias conditions.

4. study experimentally the forward and reverse bias characteristics of a junction

diode and represent it graphically.

5. from the characteristic curve of a junction diode, she can determine the forward

and reverse resistances.

6. explain the working of a Zener regulator.

7. explain the action of a junction diode as a rectifier

8. explain the working of a full wave bridge rectifier

9. explain the principle and working of a transistor.

10. explain the characteristics of a transistor in CE configuration.

11. explain the action of a transistor as an amplifier.

UNIT - V: DIGITAL ELECTRONICS


1. distinguish between decimal number system and binary number system.

2. convert decimal numbers (both integral and fractional) to binary numbers.

3. convert binary numbers ( both integral and fractional ) to decimal numbers.

4. perform binary addition, binary subtraction an binary multiplication.

5. to perform binary subtraction using 1's and 2’s complement method.

6. explain the rules of Boolean Algebra (OR laws, AND laws|& laws of complementation).

7. prove the different Boolean identities.

8. state and prove De Morgan's theorems.

9. construct all other logic gates using the NAND gate and NOR gate.

10. construct half adder and full adder using basic logic gates.



III B.Sc., (Physics) - SEMESTER VI

MAJOR ELECTIVE – 3: INSTRUMENTATION


CODE: U08PH6MCT15

Unit-I - MEASUREMENT AND PERFORMANCE CHARACTERISTICS


1. describe a simple measurement system with a block diagram

2. enumerate the static characteristics of a measuring system

3. explain accuracy, precision, zero drift, linearity, hysteresis, resolution, scale readability&

threshold.

4. differentiate between the different kinds of errors.

5. discuss the zero order system with an example.

6. discuss the performance characteristics of first order system with reference to

(a) step response and (b) ramp response

Unit-II - TRANSDUCERS


1. list out and explain the basic requirements of a transducer.

2. classify the different types of transducers and explain their working.

3. describe and explain the strain gauges of bonded and unbonded types.

4. describe and discuss a thermistor and its characteristics.

5. describe the measurement of temperature using thermistors.

6. describe the measurement of displacement using LVDT.

Unit-III - ELECTRICAL INSTRUMENTATION


1. list out the different materials used for the production of resistors

2. discuss the residual inductance and capacitance in resistors and methods of reducing them.

3. describe and explain the working of d.c.potentiometer.

4. apply the principle of potentiometer to calibrate voltmeter and ammeter.

5. apply the potentiometer principle to measure resistance.

6. discuss the measurement of power using d.c.potentiometer.

Unit-IV - ELECTRONIC INSTRUMENTATION


1. describe the construction and working of a multimeter.

2. enlist the advantages of electronic voltmeters over electrical voltmeters.

3. describe the construction of a CRO.

4. describe the measurement of voltage, current, phase and frequency using CRO.

5. mention the necessity of recorders& describe the action of strip-chart recorder.

6. explain the action of potentiometric recorder.

8. describe the working of a magnetic tape-recorder.

9. explain direct recording and frequency modulated recording on magnetic tapes.

Unit-V - TELEMETRY


1. explain the meaning of telemetry.

2. describe the working of a general telemetry system.

3. explain the working of electrical telemetry systems with reference to voltage and

current transmissions.

4. give the action of position telemetry system.

5. explain line, radio, microwave and power line carrier communication channels.

6. distinguish between pulse duration, pulse position and pulse code modulations.



B.Sc., (PHYSICS) & B.Sc., (PHYSICS WITH SPECIALISATION IN ELECTRONICS)

SEMESTER VI – MAJOR CORE 11-CONDENSED MATTER PHYSICS


CODE: U08PH6MCT13

UNIT I BONDS IN SOLIDS


1. Explain the formation of bonds in solids

2. Classify the chemical bonds as primary and secondary bonds

3. Account for the formation of ionic, covalent, metallic, vander Waal’s and hydrogen bonds and

give examples for the same

4. State the properties of various bonds

5. Bring out the differences between ionic and covalent bonds

6. Define the terms lattice points, space lattice, unit cell and Lattice parameters of a unit cell

7. Group 14 classes of bravais lattice into the 7 crystal systems

8. Define Miller indices and give the procedure for finding Miller indices

9. Sketch the crystal planes for cubic crystals

10. Explain the crystal structure for simple, body centered and Face centered cubic crystals

11. Calculate the interplanar distance for simple cubic, face centered and body centered cubic

crystals

12. Define and calculate the atomic radius for cubic crystals

13. Explain X-ray diffraction methods for determining the crystal structure

14. Derive Bragg’s law of X-ray diffraction

15. Verify Bragg’s law using Bragg’s spectrometer

16. Describe Bragg’s spectrometer and understand its use in determining the crystal structure

17. Explain Laue method for determination of crystal orientation

18. Explain the powder crystal method used in the study of crystal Structure.

UNIT II MAGNETIC MATERIALS


1. Define intensity of magnetization, magnetic field intensity, magnetic susceptibility,

magnetic permeability and give the relations connecting them.

2. Classify the magnetic materials into different types and give examples of each.

3. Explain Langevin’s theory of dia magnetism and paramagnetism.

4. Explain Weiss theory & domain theory of ferromagnetism

5. Explain Antiferromagnetism

6. List the uses of ferrites

7. List the general properties of dia, para and ferromagnetic materials.

UNIT III FREE ELETRON THEORY


1. Explain the postulates of free electron theory

2. Explain the merits and demerits of free electron theory

3. State Wiede mann-Franz law

4. State Dulong&Petit’s law

5. Prove the failure of classical theory to explain the variation of specific heat capacity with

temperature

6. Explain Einstein’s theory of specific heat capacity

7. Derive specific heat capacity value according to Debye’s model

8. Prove that Debye’s model is more realistic than Einstein’s model

9. Explain the band theory of solids & classify solids into conductors

Insulators & Semiconductors on the basis of band theory

10. Explain superconductivity and define superconductors

11. Explain BCS theory of super conductors

12. Explain what Cooper pair is.

13. Explain the properties of super conductors

14. Differentiate between type I and type II super conductors

15. List some important applications of super conductors.

UNIT IV DIELECTRICS


1. Define electric polarization, dielectric constant and dielectric susceptibility.

2. Define the relation between (i) dielectric constant and susceptibility and (ii) polarization

vector and displacement vector

3. Account for the different types of polarization viz. electronic polarization, ionic polarization

and orientation polarization.

4. Arrive at the relation for the various polarizabilities.

5. Explain the frequency & temperature dependence of various types of polarizabilities.

6. Distinguish between polar & non-polar molecules.

7. Define internal field and derive the expression for internal field and hence, derive the

Clausius-Mossotti equation.

8. Define dielectric loss and loss angle

9. Show that the imaginary part of the dielectric constant is responsible for dielectric loss.

10. Explain the spontaneous polarization.

11. explain ferroelectricity.

12. understand the production and uses of electrets.

UNIT V NON DESTRUCTIVE TESTING TECHNIQUES


1. Define what is non destructive testing of materials

2. Explain the benefits which can be derived from non destructive testing.

3. Differentiate various techniques used in non destructive testing.

4. Understand the principle of radiography technique.

5. Describe the X-ray radiographic method of non destructive testing.

6. Describe the Gamma ray radiographic method of non destructive testing.

7. Give the relative merits & demerits of X- ray & gamma ray radiographic methods.

8. Describe the magnetic particle method of non destructive method of testing.

9. Describe the Ultrasonic method of testing a material.

10. Explain the advantages, limitation and industrial applications of Ultrasonic method.

11. Explain the advantages, limitation and applications of magnetic testing method.



III B.Sc. (PHYSICS) - SEMESTER VI

MAIN CORE 12 - COMMUNICATION PHYSICS


CODE: U08PH6MCT14

UNIT-I


1. Define amplitude, frequency and phase modulation.

2. Analyze amplitude modulated wave.

3. Describe the carrier suppression process.

4. Describe the generation of single side band signals.

5. Define detection.

6. Explain the action of crystal detector.

7. Describe the action of simple receiver.

8. Describe the action of super heterodyne receiver.

9. Mention the different kinds of wave propagation.

10. Describe ionosphere propagation.

11. Explain ground and direct waves.

UNIT-II


1. Identify the microwave region in the electromagnetic spectrum.

2. Explain why microwaves cannot be generated using ordinary vacuum tubes.

3. Explain the principle of velocity modulation in the Klystron modulator.

4. Describe the generation of microwaves using Klystron modulator.

5. Describe the generation of microwaves using reflex Klystron modulator.

6. Explain how the picture signal is converted into electrical image in the image orthicon.

7. Describe the working of image orthicon.

8. Explain the process of interlaced scanning.

9. Explain the TV transmission and TV reception using block diagram.

10. Explain the action of Radar using block diagram

11. Mention the applications of Radar.

UNIT-III


1. State Kepler’s laws.

2. Mention the types of orbits for satellites.

3. Describe the geostationary orbit.

4. Explain the need for station keeping.

5. Define station keeping.

6. Mention the different factors contributing to the path loss.

7. Calculate the height of the geostationary orbit.

8. Define satellite attitude.

9. Explain the working of the earth station using block diagram.

10. Explain the working of the satellite using block diagram

11. Mention the different Indian satellites.

UNIT- IV


1. Describe a fiber.

2. Explain total internal reflection.

3. Give the principle of propagation of light within the fiber.

4. Differentiate between step index fiber and graded index fiber.

5. List the losses in fiber.

6. Describe photo diode and avalanche diode.

7. Describe the action of light sources used in optical communication system.

8. Mention the advantages of fiber optic communication system.

UNIT – V


1. Describe Hertz experiment.

2. Define an Ariel.

3. Derive an expression for the radiation field due to a dipole antenna.

4. Derive an expression for the radiation resistance of the dipole and power radiated by a

dipole antenna.

5. Define facsimile transmission.

6. Describe cylindrical scanning method.

7. Explain synchronization, phase & index of co-operation in a facsimile receiver.

8. Describe photographic reception.

9. Explain the transmission of facsimile telegraph signals and find the bandwidth.



B.Sc. PHYSICS WITH SPECIALIZATION IN ELECTRONICS

SEMESTER VI – MAJOR CORE 13- COMMUNICATION ELECTRONICS


CODE: U08PH6MCT15

UNIT: I RADIO COMMUNICATION SYSTEM


1. Mention the different kinds of wave propagation.

2. Describe ionosphere propagation.

3. Explain ground and direct waves.

4. Define amplitude, frequency and phase modulation.

5. Analyze amplitude modulated wave.

6. Describe carrier suppression process.

7. Describe the generation of single side band signals.

8. Define detection and demodulation.

9. Explain the action of crystal detector.

10. Describe the action of simple receiver.

11. Describe the action of superhetrodyne receiver.

12. Define an aerial

13. Derive an expression for the radiation field due to a dipole antenna

14. Derive an expression for the radiation resistance of the dipole and power radiated by a

dipole Antenna.

UNIT-II MICROWAVE COMMUNICATION


1. Identify the microwave region in the electromagnetic spectrum.

2. Describe the generation of microwaves using Klystron modulator.

3. Explain the method of Scanning in T.V.

4. Explain the process of interlaced scanning.

5. Explain the need for Synchronization in T.V.

6. Explain how the picture signal is converted into electrical image

in the Iconoscope.

7. Describe the working of image orthicon.

8. Explain the TV transmission and TV reception using

block diagram.

9. Explain the action of Color Television.

10. Explain the action of Radar using block diagram

11. Derive the RADAR equation.

12. Explain the working of RADAR altimeters and RADAR Beacons.

13. explain the working of interrogating RADAR.

14. explain the working of ground controlled approach RADAR .

UNIT-III SATELLITE COMMUNICATION


1. State Kepler’s three laws.

2. Mention the types of orbits for communication satellites.

3. Describe the geostationary orbit.

4. Calculate the height of the geostationary orbit.

5. Explain the need for station attitude.

6. Define station keeping

7. Derive the expression for transmission path.

8. Mention the different factors contributing to the path loss

9. Explain the working of the earth station using block diagram.

10. Explain the working of the satellite using block diagram

11. Mention the different Indian satellites.

UNIT- IV FIBER OPTIC COMMUNICATION


1. Describe a fiber

2. Explain total internal reflection

3. Give the principle of propagation of light within the fiber

4. Describe the acceptace angle and acceptace cone half angle

5. Differentiate between step index fiber and graded index fiber

6. Listout the losses in fiber

7. Describe photo diode and avalanche diode

8. Describe the action of light sources used in optical communication system

9. Mention the advantages of fiber optic communication system

UNIT – V PULSE MODULATION AND FACSIMILE COMMUNICATION


1. Explain the basic ideas of pulse amplitude modulation and pulse width modulation.

2. Explain the principle of pulse code modulation.

3. describe differential PCM and delta modulation.

4. Define facsimile transmission

5. Describe cylindrical scanning method in Fax transmitter.

6. Explain synchronization, phase and index of co-operation in a facsimile receiver.

7. Describe photographic reception of Fax receiver.

8. Describe direct recording reception of Fax receiver.



B.Sc.,PHYSICS WITH SPECIALISATION IN ELECTRONICS

SEMESTER- VI : MAJOR ELECTIVE – 3

APPLIED ELECTRONICS


CODE: U08PH6MET05 UNIT: I INTEGRATED CIRCUIT FABRICATION:


1. explain the theory of monolithic integrated circuits

2. explain about the processes epitaxial growth, masking and etching

3. explain about the integrated resistors and capacitors

4. define large scale and medium scale integration

5. explain the printed circuit board fabrication

UNIT: II POWER ELECTRONICS:


1. explain the construction and working of SCR

2. explain the phase control of SCR

3. explain the working of SCR as a switch

4. explain the working of SCR as half wave rectifier and full wave rectifier

5. list out the applications of SCR

6. explain the construction of Triac

7. draw the characteristics of Triac and explain its working

8. state the meaning of diac

9. explain the working of diac

10. explain the construction and working of Uni- junction transistor

11. draw and explain the equivalent circuit of a UJT

12. explain the application of UJT(UJT as a relaxation oscillator).

UNIT : III OPTO ELECTRONIC DEVICES:


1. define optoelectronic devices

2. explain spectral response of human eye

3. classify the three types of photoelectric devices(photoemissive, photoconductive & photo

voltaic)

4. explain the construction and working of photo emissive devices

5. explain the construction and working of photo multiplier tube

6. explain the construction and working of photo transistor

7. explain the construction and working of photo voltaic devices

8. explain the construction and working of bulk type photoconductive cells

9. explain the working of photo diode

10. explain the working of avalanche photo diode

11. explain the construction and working of PN junction photodiode

12. explain the working of PIN diode

UNIT-IV SPECIAL DIODES AND DISPLAYS


1. explain tunneling effect

2. draw and explain the tunnel diode characteristics

3. explain the working of tunnel diode oscillator

4. explain the working of Varactor diode

5. explain the working of Schottky diode

6. explain the working of step recovery diode

7. explain about Thermistors

8. explain about Gunn effect

9. explain the display of numerical numbers in seven segment display

10. explain the functioning of diode matrix for conversion of BCD system to

decimal read out

UNIT: V MOSFET


1. explain the construction and working of depletion type MOSFET

2. explain the construction and working of enhancement type MOSFET

3. explain the characteristics of depletion type MOSFET

4. explain the characteristics of enhancement type MOSFET

5. differentiate between depletion type and enhancement type MOSFET

6. explain the function of MOSFET as a resistor

7. list the advantages of N-channel MOSFET over p-channel MOSFET

Documents

HOLY CROSS COLLEGE, (AUTONOMOUS), TIRUCHIRAPPALLI …naac.hcctrichy.in/SSR_IV_CONTENT/Criteria_1/1.1.1...2 define Self inductance and obtain expression for Self inductance of a Solenoid