NEET Physics Interference MCQ Question
Consider a diagram showing two point sources S1 and S2 creating an interference pattern on a screen. Which condition must be satisfied for point P on the screen to be a point of constructive interference?
The path difference between S1 and S2 at P is an integer multiple of the wavelength.
The phase difference between S1 and S2 at P is 90 degrees.
The distance from S1 to P is equal to the distance from S2 to P.
The path difference between S1 and S2 at P is half the wavelength.
Correct Answer
Detailed Explanation
Constructive interference occurs when the path difference is an integer multiple of the wavelength, as stated in the NCERT context.
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