Physics-Interference
NEET Physics Interference MCQ Question
Type: MCQ-diagram based-Hard-Class 12
Consider a setup where two coherent light sources S1 and S2 are separated by a distance 'd'. They produce an interference pattern on a screen positioned at a distance 'D' from the sources. If the path difference at a point P on the screen is (n + 1/2)λ, which of the following statements is correct about the intensity at P?
A
The intensity at point P is zero due to destructive interference.
B
The intensity at point P is maximum due to constructive interference.
C
The intensity at point P is twice the individual intensity of each source.
D
The intensity at point P is 4 times the intensity of each source.
Correct Answer
Option A
Detailed Explanation
Destructive interference occurs when the path difference is (n + 1/2)λ, leading to zero intensity at point P.
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