A ray of light hits a flat surface at an angle and is diffusely ...

[oliviahorn72]

A ray of light hits a flat surface at an angle  and is diffusely reflected. At what angle is it reflected?
  1.
  2. 2
  3.
  4. unknown

Question 2

Einstein's theory of the photoelectric effect treats light as photons. According to this theory,
  1.all photons have the same energy.
  2.photons that move faster have more energy.
  3.photons with double the frequency have double the energy.
  4.photons with double the frequency have half the energy.

[matt]

Answer to Question 1

4

Answer to Question 2

3