The speed of light in a vacuum is 3.00*10^8 m/s. If the speed of light passing through silicon is 7.5*10^7 m/s, what is the refractive index of silicon? a) 40 b) 2.5 c) 25 d) 4

The direction that a light wave bends once it enters the refracted medium depends on a. The index of refraction of the incident medium only. b. The indices of refraction of both the incident and refracted media. C. The angle of incidence of the incident light ray only. d. The index of refraction of the refracted medium, only.

Determine the frequency of light at 4.62 x 102 nm and 6.08 x 102 nm. (a) 4.62 x 102 nm Hz (b) 6.08 x 102 nm Hz

20. A light wave is incident at 0 degrees to the normal approaching a plane mirror. What will be the angle of the reflected ray?A. 0B. 45C. 90D. 180

(a) Calculate the wavelength of light in vacuum that has a frequency of 5.06 x 10 18 nm (b) What is its wavelength in flint glass? nm (c) Calculate the energy of one photon of such light in vacuum. Express the answer in electron volts. eV (d) Does the energy of the photon change when it enters the flint glass? The energy of the photon changes. The energy of the photon does not change. Hz. Explain.

Light travels through water at an approximate speed of 2.25 x 108 m/s. What is the refractive index of water? A) 0.75 B) 1.33 C) 1.50 D) 2.25