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.
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 : Interference pattern is obtained on a screen due to two identical coherent sources of monochromatic light. The intensity at the central part of the screen becomes one-fourth if one of the sources is blocked.
Reason: The resultant intensity at any point is the algebraic sum of the intensities due to two sources.
(1) \( \mathrm{A} \)
(2) B
(3) \( \mathrm{C} \)
(4) \( \mathrm{D} \)
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