MHT CET · Physics · Wave Optics
Two monochromatic beams of intensities I and 4I respectively are superposed to form a steady interference pattern. The maximum and minimum intensities in the pattern are
- A \(4 \mathrm{I}\) and \(\mathrm{I}\)
- B 9I and \(3 \mathrm{I}\)
- C \(5 \mathrm{I}\) and \(3 \mathrm{I}\)
- D 9I and I
Answer & Solution
Correct Answer
(D) 9I and I
Step-by-step Solution
Detailed explanation
\(\begin{aligned} & I_{\max }=I+4 I+2 \sqrt{(I)(4 I)}=9 I \\ & I_{\min }=I+4 I-2 \sqrt{(I)(4 I)}=I\end{aligned}\)
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