Question Detail

CHM 101 Quantum Theory and Atomic Structure Objective Question
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Question

What is the threshold frequency in the context of the photoelectric effect?
Options
A The frequency at which electrons are emitted with maximum kinetic energy
B The characteristic minimum frequency below which no electrons are emitted from a metal surface
Correct Answer
C The frequency at which the intensity of light determines electron emission
D The frequency above which photons lose their particle-like behavior
Correct Answer

Option B is the correct answer.

Detailed Explanation

The threshold frequency is the characteristic minimum frequency of incident light required to eject electrons from a metal surface. If the frequency is below this threshold, no electrons are emitted regardless of the light intensity, because individual photons lack sufficient energy to overcome the binding energy of electrons in the metal.

Hint

Recall the condition required for electrons to be ejected from a metal surface when light shines on it.

Question Info

Course: CHM 101
Topic: Quantum Theory and Atomic Structure
Type: Objective
Difficulty: Not specified
Question 1497 of 1872
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