Question

A photoelectric cell converts

• A. Light energy into heat energy
• B. Light energy into sound energy
• C. Light energy into electric energy
• D. Electric energy into sound energy

Answer 1

Answer: (C)

Light energy into electric energy

Photoelectric cell or photocell, device whose electrical characteristics (e.g., current, voltage, or resistance) vary when light is incident upon it. The most common type consists of two electrodes separated by a light-sensitive semiconductor material.
The photoelectric effect is the observation that many metals emit electrons when light shines upon them. Electrons emitted in this manner can be called photoelectrons.