Physics-Photoelectric Effect
NEET Physics Photoelectric Effect MCQ Question
Type: MCQ-fact-Easy-Class 12
What is the cut-off frequency in the context of the photoelectric effect?
A
The minimum frequency below which no photoelectric emission occurs
B
The maximum frequency that can cause photoelectric emission
C
The frequency at which photoelectric emission is at its peak
D
The frequency of light that produces the most kinetic energy in photoelectrons
Correct Answer
Option A
Detailed Explanation
The cut-off frequency, also known as the threshold frequency, is defined as the minimum frequency below which no photoelectric emission is possible, regardless of the intensity of the incident radiation.
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