CUET · PHYSICS · PYQ PAPER 2023
Two sources of light are said to be coherent when they emit light of
A. same wavelength
B. same amplitude
C. same intensity
D. constant phase difference
Choose the correct answer from the options given below:
- A B and C only
- B A and D only
- C B and D only
- D A and C only
Answer & Solution
Correct Answer
(B) A and D only
Step-by-step Solution
Detailed explanation
Two light sources are considered coherent if they emit waves of the same wavelength (or frequency) and maintain a constant phase difference over time. While having the same amplitude or intensity can enhance the contrast of interference patterns, it is not a requirement for…
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