Question Detail

PHY 104 Photo Electric Emission Objective Question
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Question

Thermionic emission is defined as:
Options
A The emission of light from a heated metal.
B The emission of electrons from a metal when it is heated.
Correct Answer
C The emission of heat from a metal when it is exposed to light.
D The absorption of electrons by a heated metal.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 6 defines thermionic emission as 'The emission of electrons from a metal when it is heated'. It also notes its discovery by Edison.

Hint

Refer to the definition of 'Thermionic emission' on page 6.

Question Info

Course: PHY 104
Topic: Photo Electric Emission
Type: Objective
Difficulty: Not specified
Question 199 of 947
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