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JEE Main 2023 (13 Apr, Shift 2) · Superposition, Coherence & Intensity

Superposition, Coherence & Intensity question from JEE Main 2023 (13 Apr, Shift 2)

Q57JEE Main 2023 · 13 APR · SHIFT 2Easy

Superposition, Coherence & Intensity

In a Young's double slits experiment, the ratio of amplitude of light coming from slits is $2 : 1$ . The ratio of the maximum to minimum intensity in the interference pattern is:

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Answer: (b)

$\frac{I_{max}}{I_{min}} = \left(\frac{a_1+a_2}{a_1-a_2}\right)^2$
$= \left(\frac{2+1}{2-1}\right)^2 = 9$
So the answer is (b) $9 : 1$ .

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