Question Detail

PHY 104 Photo Electric Emission Objective Question
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Question

What is the 'Work Function' (W) in the context of the Photoelectric Effect?
Options
A The kinetic energy of the ejected electrons.
B The total energy of the incident photons.
C The amount of energy needed to get an electron out of the metal.
Correct Answer
D The potential difference required to stop the electron flow.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 3 and 4 define 'W' as 'the energy necessary to eject the electron called the Work Function' and 'the amount of energy needed to get the electron out of the metal'.

Hint

Consider the minimum energy requirement for an electron to escape the metal surface.

Question Info

Course: PHY 104
Topic: Photo Electric Emission
Type: Objective
Difficulty: Not specified
Question 182 of 947
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