Question Detail

CHM 101 Atomic Structure and Quantum Theory Objective Question

Question

According to Einstein's theory, what happens if photons have less energy than the threshold frequency?
Options
A Electrons are still released but more slowly
B The electron cannot escape from the metal surface, even if the light beam is intense
Correct Answer
C More electrons are released
D The metal heats up
Correct Answer

Option B is the correct answer.

Detailed Explanation

The electron cannot escape from the metal surface if the photons of the radiation have less energy than the energy threshold, even if the light beam is intense.

Hint

The notes emphasize that intensity cannot compensate for insufficient frequency.

Question Info