Question

Which statement about the photoelectric effect is true?

A When light acts as a wave, electrons are removed from a metal,

B. It occurs when an electric current causes light to be produced,

C. An electric current is produced when light shines on a surface,

D. It occurs any time an electric current is produced.

Answer 1

Answer: A

Step-by-step explanation:

The photoelectric effect was first proposed by Einstein. He claimed that when a light wave comes in contact with an electron, it has the ability to strip that electron from its atom. It depends on how much energy the light wave is carrying, and what type of atom the light is hitting. We use the photoelectric effect in garage motion sensors.