Question Detail

PHY 104 Diffraction and Interference of light waves Objective Question
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Question

Which of the following path differences between two coherent waves will result in destructive interference?
Options
A 0
B λ
C 3λ/2
Correct Answer
D 2λ
Correct Answer

Option C is the correct answer.

Detailed Explanation

For destructive interference, the path difference must be an odd multiple of half the wavelength. The text lists 'λ/2, 3λ/2, 5λ/2' as conditions for dark fringes. Among the options, 3λ/2 fits this condition.

Hint

Review the 'condition required for the formation of dark fringes' on page 3.

Question Info

Course: PHY 104
Topic: Diffraction and Interference of light waves
Type: Objective
Difficulty: Not specified
Question 495 of 947
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