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

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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 : A lens L (shown in the figure)
- kept in a surrounding medium \( \mathrm{X} \) has a power \( +10 D \). If the same lens is kept in a surrounding medium \( \mathrm{Y} \), its power is found to be \( +12.5 \mathrm{D} \). Also if the same
- lens is placed in a surrounding medium
- Z, its power is now measured to be -
3.5D, then \( \mu_{Z}\mu_{X}\mu_{Y} \).
Reason : In different surroundings, power of a given lens has different values but the same sign.
(1) A
(2) B
(3) C
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