Question

fill in the blank question
when light of a certain frequency, or higher than a certain frequency, shines on the surface of a metal, electrons are emitted. this is called the
effect.

Explanation:

The photoelectric effect is a phenomenon in physics where electrons are emitted from a metal surface when light of sufficient frequency (or energy) shines on it. This is a key concept in quantum physics and was explained by Einstein.

Answer:

photoelectric