Question Detail

PHY 104 Diffraction and Interference of light waves Objective Question
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Question

What is the primary advantage of using a diffraction grating compared to a double-slit setup for producing a diffraction pattern?
Options
A It allows for the observation of unpolarized light only.
B It produces a brighter and sharper diffraction pattern.
Correct Answer
C It eliminates the need for a monochromatic light source.
D It can only be used with very short wavelengths.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 5 mentions, 'If many parallel slits similar to those in Young's experiment are spaced regularly and of the same width, a brighter and sharper diffraction pattern can be obtained.' This is the key advantage of a diffraction grating.

Hint

Think about the effect of having 'many' slits instead of just two.

Question Info

Course: PHY 104
Topic: Diffraction and Interference of light waves
Type: Objective
Difficulty: Not specified
Question 527 of 947
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