Physics-Photoelectric Effect
NEET Physics Photoelectric Effect MCQ Question
Type: MCQ-fact-Medium-Class 12
What is the minimum frequency of light required to emit electrons from a metal surface in the photoelectric effect called?
A
Threshold frequency
B
Resonant frequency
C
Critical frequency
D
Emission frequency
Correct Answer
Option A
Detailed Explanation
The minimum frequency required for photoelectric emission is known as the threshold frequency, which is dependent on the work function of the material. This concept is highlighted in the NCERT context discussing the conditions necessary for electron emission.
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