Question Detail

PHY 104 Photo Electric Emission Objective Question
Take CBT

Question

According to the observations of the Photoelectric Effect, what happens if the frequency of light is below a certain value, known as the threshold frequency?
Options
A Electrons are emitted, but with less kinetic energy.
B Electrons are emitted, but only after a significant time delay.
C No electrons are emitted, regardless of the light intensity.
Correct Answer
D More electrons are emitted, creating a stronger current.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 1 states, 'It was found that no electrons were emitted unless the frequency of light was above a certain value, called the threshold frequency.' This key observation is crucial to understanding the effect.

Hint

Look for the conditions under which electron emission *does not* occur.

Question Info

Course: PHY 104
Topic: Photo Electric Emission
Type: Objective
Difficulty: Not specified
Question 179 of 947
Previous Course Details Next