Question Detail

PHY 102 Test Compilation PHY 102 28 Objective Question
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Question

When a source of dim orange light shines on a photosensitive metal, no photoelectrons are ejected from its surface. What could be done to increase the likelihood of producing photoelectrons?
Options
A Replace the orange light source with a red light source
B Replace the orange light source with a higher frequency light source
Correct Answer
C Increase the brightness of the orange light source
D Increase the angle at which the photons of orange light strike the metal
Correct Answer

Option B is the correct answer.

Detailed Explanation

Photoelectric effect depends on frequency crossing the threshold, not intensity or angle.

Hint

Photoelectric effect depends on frequency crossing the threshold, not intensity or angle.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 28
Type: Objective
Difficulty: Not specified
Question 1618 of 1819
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