Assertion :Magnification of a convex mirror is always positive, but that of a concave mirror may be both positive or negative. Reason: It depends on the sign convention chosen.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is C Assertion is correct but Reason is incorrect.
A convex mirror would always produce an erect image, and a concave mirror may produce an inverted or an erect image depending on the position of the object placed.
Thus, independent of the sign convention, the magnification of a convex mirror is always positive, but that of a concave mirror may be both positive or negative.

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