A. If both Assertion \& Reason are True \& the Reason is a correct ...

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A. If both Assertion \& Reason are True \& the Reason is a correct explanation of the Assertion.
\( \mathrm{P} \)
B. If both Assertion \& Reason are True but Reason is not a
W correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion \& Reason are False.
Assertion : In YDSE, interference pattern is made by using blue light in stead of red light, the fringes become narrower

Reason : In YDSE, fringe width is given by relation \( \beta=\frac{\lambda D}{d} \).
(1) A
(2) \( B \)
(3) \( \mathrm{C} \)
(4) \( \mathrm{D} \)
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