MHT CET · Physics · Waves and Sound
Two identical light waves having phase difference \(\phi\) propagate in the same direction. When they superpose, the intensity of the resultant wave is proportional to
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
For two identical light waves
\(I_R=4 I \cos ^2 \frac{\phi}{2}\)
\(\therefore I_R \propto \cos ^2 \frac{\phi}{2}\)
\(I_R=4 I \cos ^2 \frac{\phi}{2}\)
\(\therefore I_R \propto \cos ^2 \frac{\phi}{2}\)
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