CUET · PHYSICS · PYQ PAPER 2023
Two sources are producing waves as given in the options below. Which two sources are called coherent ?
- A of same velocity
- B of equal wavelength
- C having a constant phase difference
- D having wavefront of same shape
Answer & Solution
Correct Answer
(C) having a constant phase difference
Step-by-step Solution
Detailed explanation
Two sources are called coherent if they emit waves of the same frequency and maintain a constant phase difference over time. This stability is necessary to produce a permanent and observable interference pattern, rather than a blurred mess of light. C) having a constant phase…
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