Question

which event happens in a solar cell when the photoelectric effect occurs? a. electromagnetic waves strike the transparent glass on the top of the cell, removing electrons from it. b. electrons flow from the positively charged semiconductor to the negatively charged one. c. the wave model of light is supported, but the particle model is not. d. a current forms when electromagnetic waves strike a semiconductor, removing some of its electrons.

Explanation:

The photoelectric effect in a solar - cell occurs when electromagnetic waves (light) strike a semiconductor. The energy from the light is used to remove electrons from the semiconductor, creating a flow of electrons (a current). Option A is incorrect as electrons are not removed from the glass. Option B is about the flow of electrons between semiconductors which is not the core of the photoelectric effect in this context. Option C is wrong because the photoelectric effect supports the particle model of light (photons).

Answer:

D. A current forms when electromagnetic waves strike a semiconductor, removing some of its electrons.