Question Detail

PHY 104 Photo Electric Emission Objective Question
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Question

How did the experimental observations of the Photoelectric Effect contradict the predictions of the classical wave theory of light regarding the time delay for electron emission?
Options
A Wave theory predicted immediate emission, but experiments showed a delay.
B Wave theory predicted a delay, but experiments showed immediate emission.
Correct Answer
C Both wave theory and experiments predicted immediate emission.
D Both wave theory and experiments predicted a delay proportional to intensity.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 1 notes, 'Electrons were emitted immediately ... there was no delay after first exposure.' This directly contradicts the classical wave theory, which would predict a delay for low intensity light as energy accumulates.

Hint

The document explicitly highlights the 'delay' aspect of electron emission in its observations.

Question Info

Course: PHY 104
Topic: Photo Electric Emission
Type: Objective
Difficulty: Not specified
Question 180 of 947
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