Homework_8_Key_F10

Homework_8_Key_F10 - 2 4 4 If light travels from air into...

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1 n c c vacuum medium sin sin i r n n r i GLY 4200 HOMEWORK 8 25 Points Properties of Light in Minerals Show all work. Label answers, including units. Express answers to the correct number of significant figures. Points shown in red. The relationship between the speed of light (c), frequency (f), and wavelength ( 8 ) is: c = f 8 c = 2.998 x 10 8 m/s. 3 1. If 8 = 555 nm, what if f? 3 2. If f = 6.76 x 10 14 Hz, what is 8 (expressed in nm)? The index of refraction is defined as: 3 3. n Chloroargyrite = 2.07. What is the speed of light in chloroargyrite? Snell’s Law is given by the equation:
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2 n n r i i  tan n n i r i  sin . 100 NA n w h e r e
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Unformatted text preview: , _ 2 4 4. If light travels from air into sylvite, and the angle of incidence is 29.6°, what is Ê r? n for sylvite = 1.490. Brewster’s Law of maximum polarization is: 4 5. For sylvite, what is Ê i? The critical angle is given by a variation of Snell’s Law: 4 6. Suppose light passes from sylvite into air. What is the critical angle? HINT: Remember that light is going from sylvite into air. What is the incident medium? The formula for the Numerical Aperture (N.A.) Is: 4 7. If the angular aperture is 35.7°, and n = 1.544, what is N.A.?...
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Homework_8_Key_F10 - 2 4 4 If light travels from air into...

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