Question Detail

PHY 104 PHY 104 Past Questions Objective Question
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Question

When photons with an energy of 3.0 eV strike a photoelectric surface the maximum kinetic energy of the emitted photoelectrons is 2.0 eV. What is the work function of the surface?
Options
A 1.00 eV
Correct Answer
B 0.67 eV
C 1.50 eV
D 5.00 eV
Correct Answer

Option A is the correct answer.

Detailed Explanation

φ = E_photon - K_max = 3.0 - 2.0 = 1.0 eV.

Hint

Use φ = hf - K_max.

Question Info

Course: PHY 104
Topic: PHY 104 Past Questions
Type: Objective
Difficulty: Not specified
Question 938 of 947
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