Question Detail

PHY 104 Diffraction and Interference of light waves Objective Question
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Question

In Young's double-slit experiment, the 'fringe width' typically refers to the distance between which of the following?
Options
A The two slits (d).
B The slits and the viewing screen (x).
C Two adjacent bright fringes or two adjacent dark fringes.
Correct Answer
D The center of a bright fringe to the center of an adjacent dark fringe.
Correct Answer

Option C is the correct answer.

Detailed Explanation

While not explicitly defined as 'fringe width', the context of calculating locations of fringes (y = nλx/d for bright fringes) implies that the separation between consecutive fringes (e.g., n and n+1) is a measure of fringe width. This separation is constant for small angles and refers to the distance between adjacent bright (or dark) bands.

Hint

Consider how the positions of consecutive bright fringes are calculated (y = nλx/d).

Question Info

Course: PHY 104
Topic: Diffraction and Interference of light waves
Type: Objective
Difficulty: Not specified
Question 516 of 947
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