NEET Physics Interference MCQ Question
Which of the following combinations regarding interference are correct?
A path difference of nλ leads to constructive interference, while (n + 1/2)λ leads to destructive interference.
Destructive interference occurs when the two waves are in phase at a point.
The resultant intensity in constructive interference is always zero.
For two coherent sources, the resultant intensity is proportional to the square of the amplitude of the waves.
Correct Answer
Detailed Explanation
A path difference of nλ corresponds to constructive interference, while (n + 1/2)λ corresponds to destructive interference, as stated in the provided context. The resultant intensity in constructive interference is not zero; it is maximum, while intensity is indeed proportional to the square of the amplitude.
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