Optics Study Guide - Chapter 22 & '23Chapter 22 problems:

1. A beam of light in air is incident at an angle of 37° on the surface of a block of transparent\ materiaL The angle of refraction is found to be 25°. What is the speed of light in the

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~•. ~ /1,).; D 1.. . • '\ '2~ ---------'2. The Sun iSiOo~bove the horizon. If you are swimmingbeneath the surface of a pool of

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e2 - LJ7.71 .4~~ , .e \ 3. Find the speed of light in (a) flint, n_=.-1.66.;'-<.b)~er,n = .33; and (c) zircon, n = 1.923. (a.1.81~1d m/s b. 2.26;1d m/s C; .1.56xld m/s) f5 ,\ ._ .l'f.109'

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'(t11s ~4. A beam of light strikes the surface of mineral oil at an angle of 23.1° with respect to the

normal to the surface. If the light travels with a speed of 2.17 x 108 m/s through the oil,; ~hat is the angle of refraction? (16.17) fI; S~nQ;::. n ("'5\'<\G «:(~, e nf'~ (\ -=- .~ L\J 5',(')').'3.1 t>~(L 3f;;9...5)5\\1 b'1"'~--~~-- ~

t1"'~ ";.~ Y, ~ \..3<02.S '5~() 9 -:."J..8'~7C."t a.I(-l-/D .'1b G (' =- llo ~5"5. Calculate the critical angle for the following materia s w en surroun e yair: (a) zircon,

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6. A beam of light traveling in air is incident on a transparent plastic material at an angle ofincidence 0 ~The an~le of refrac:,ion is 35°, ~hat is the index of refraction of the

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7. The angle of incidence of a light rayon a mirrored surface is 35°. That is the angle betweenthe incident and reflected rays?

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Chapter 23 problems

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10. Where must an object be places to have unit magnification (IMI = 1.00) for a converging lensof focal length 12.0 cm? (24 em) (\ Ll .AI'1

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11. A person uses a converging lens that has a focal length of 12.5 cm to inspect a gem. The lensforms a virtual image 30.0 cm away. Determine the magnification. Is this image upright orinverted? (3.40, uprig~t) . ~ .J.. -:.- ~ ~ _ I-~..?O.!?\

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/ v Knowhow to draw ray diagrams. rp -z 8.b d..c.~