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JEE Main 2022 (24 Jun, Shift 2) · Superposition, Coherence & Intensity

Superposition, Coherence & Intensity question from JEE Main 2022 (24 Jun, Shift 2)

Q66JEE Main 2022 · 24 JUN · SHIFT 2Easy

Superposition, Coherence & Intensity

Two light beams of intensities in the ratio of 9: 4 are allowed to interfere. The ratio of the intensity of maxima and minima will be:

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Answer: (d)

Intensity ratio $9:4 \Rightarrow$ amplitude ratio $3:2$ .
$\frac{I_{max}}{I_{min}} = \left(\frac{3+2}{3-2}\right)^2 = 25$
So the answer is (d) $25 : 1$ .

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