Upload
dwsutherland
View
1.238
Download
4
Embed Size (px)
Citation preview
Diffraction
The bending of waves around the edges of barriers
Diffraction (a) the diffraction effects are greater for long
wavelength waves (b) the diffraction effects are greater for small
holes
Young's Double Slit Experiment
Double Slit Experiment
Double Slit Experiment
Double Slit Experiment
Double Slit Experiment
Constructive Interference (Bright, maxima): d sin θ = mλ
Destructive Interference (Dark, minima): d sin θ = (m + ½)λ
Sample Problem #1
Monochromatic light falling on two slits 0.016 mm apart from each other produces a 5th order fringe at an angle of 8.8 degrees. What is the
wavelength of the light used?
Sample Problem #2
A screen containing two slits 0.100 mm apart is 1.2 m from the screen. Light with a wavelength of 500 nm falls on
the slits from a distant source. Approximately how far apart are the
adjacent bright interference fringes on the screen?
Sample Problem #2
Intensity
Dispersion
Polarization
Critical Angle
MirrorsMirrors - f is + for concave, - for convex -do and di are + for real objects & images
-do and di are - for virtual objects & images
-m is + for upright images, - for inverted images
Lenses Lenses - f is + for converging, - for diverging -do and di are + for real objects & images
-do and di are - for virtual objects & images
-m is + for upright images, - for inverted images