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PHY 102 Test Compilation PHY 102 28 Objective Question
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Question

What is the cut-off frequency of radiation that can eject photoelectrons from sodium with a work function of 2.3 eV?
Options
A 3.68 x 1014 Hz
B 3.47 x 1014 Hz
C 2.50 x 1020 Hz
D 5.55 x 1014 Hz
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

f0=phi/h=(3.685e-19)/(6.626e-34)=5.56e14 Hz.

Hint

f0=phi/h=(3.685e-19)/(6.626e-34)=5.56e14 Hz.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 28
Type: Objective
Difficulty: Not specified
Question 1622 of 1819
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