When light enters glass from air, which of these properties of the light change?
a. frequency c. speed
b. wavelength d. all of the above
Question 2
When a light ray traveling in air meets the surface of a piece of glass, which of the following occur at the interface?
a. The light is totally reflected.
b. Some of the light is reflected back into the air.
c. Some light enters the glass and is refracted toward the normal.
d. Some light enters the glass and is refracted away from the normal..
e. All of the light enters the glass.
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