Question

Photoelectric effect:

• A. cannot be exhibited by liquids and gases
• B. is seen in liquids as they can undergo electrolysis
• C. is seen in gases as they can undergo ionisation
• D. both (b) and (c)

Answer 1

The correct option is D both (b) and (c)

The effect is based on the idea that electromagnetic radiation is made of a series of particles called photons. When a photon hits an electron on a metal surface, the electron can be emitted. The emitted electrons are called photoelectrons.