1. When light passes from vacuum (index of refraction n = 1) into water (n = 1.333), Q33.1 1. the wavelength increases and the frequency is unchanged 2. the wavelength decreases and the frequency is unchanged 3. the wavelength is unchanged and the frequency increases 4. the wavelength is unchanged and the frequency decreases 5. both the wavelength and the frequency change

2. When light passes from vacuum (index of refraction n = 1) into water (n = 1.333), A33.1 1. the wavelength increases and the frequency is unchanged 2. the wavelength decreases and the frequency is unchanged 3. the wavelength is unchanged and the frequency increases 4. the wavelength is unchanged and the frequency decreases 5. both the wavelength and the frequency change

3. Light passes from vacuum (index of refraction n = 1) into water (n = 1.333). If the incident angle  a is in the range 0° <  a < 90°, Q33.2 1. the refracted angle is greater than the incident angle 2. the refracted angle is equal to the incident angle 3. the refracted angle is less than the incident angle 4. answer depends on the specific value of  a

4. Light passes from vacuum (index of refraction n = 1) into water (n = 1.333). If the incident angle  a is in the range 0° <  a < 90°, A33.2 1. the refracted angle is greater than the incident angle 2. the refracted angle is equal to the incident angle 3. the refracted angle is less than the incident angle 4. answer depends on the specific value of  a

5. Light passes from a medium of index of refraction n a into a second medium of index of refraction n b. In order for total internal reflection to occur, it must be true that Q33.3 1. n a > n b and the incident angle  a is greater than the critical angle 2. n a > n b and the incident angle  a is less than the critical angle 3. n a < n b and the incident angle  a is greater than the critical angle 4. n a < n b and the incident angle  a is less than the critical angle

6. Light passes from a medium of index of refraction n a into a second medium of index of refraction n b. In order for total internal reflection to occur, it must be true that A33.3 1. n a > n b and the incident angle  a is greater than the critical angle 2. n a > n b and the incident angle  a is less than the critical angle 3. n a < n b and the incident angle  a is greater than the critical angle 4. n a < n b and the incident angle  a is less than the critical angle

7. Three polarizing filters are stacked, with the polarizing axes of the second and third filters oriented at 45° and 90°, respectively, relative to the first filter. If unpolarized light of intensity I 0 is incident on the first filter, the intensity emerging from the third filter is Q33.4 1. I 0 2. I 0 /(2 1/2 ) 3. I 0 /2 4. I 0 /4 5. I 0 /8

8. Three polarizing filters are stacked, with the polarizing axes of the second and third filters oriented at 45° and 90°, respectively, relative to the first filter. If unpolarized light of intensity I 0 is incident on the first filter, the intensity emerging from the third filter is A33.4 1. I 0 2. I 0 /(2 1/2 ) 3. I 0 /2 4. I 0 /4 5. I 0 /8

9. Natural light is incident on the surface of a liquid. The reflected light will be completely polarized if the incident angle  a is Q33.5 1. greater than the polarizing angle 2. greater than or equal to the polarizing angle 3. equal to the polarizing angle 4. less than or equal to the polarizing angle 5. less than the polarizing angle

10. Natural light is incident on the surface of a liquid. The reflected light will be completely polarized if the incident angle  a is A33.5 1. greater than the polarizing angle 2. greater than or equal to the polarizing angle 3. equal to the polarizing angle 4. less than or equal to the polarizing angle 5. less than the polarizing angle