Question Detail

PHY 104 Photo Electric Emission Objective Question
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Question

What is the primary function of the electron gun in a Cathode Ray Tube (CRT), as described in the document?
Options
A To deflect the electron beam using magnetic fields.
B To accelerate and focus the electron beam.
Correct Answer
C To generate light for the fluorescent screen.
D To collect ejected electrons and form a current.
Correct Answer

Option B is the correct answer.

Detailed Explanation

According to the 'Electron gun' section on page 7, its function is 'Accelerating and focussing effect on the electron beam'.

Hint

Think about the primary role of an electron gun in creating a usable electron beam.

Question Info

Course: PHY 104
Topic: Photo Electric Emission
Type: Objective
Difficulty: Not specified
Question 208 of 947
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