NEET Physics Reflection Assertion Reason Question
Assertion (A): The mirror equation relates the object distance, image distance, and focal length for mirrors. | Reason (R): In the mirror equation, the focal length is considered positive for concave mirrors.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true, but R is false.
A is false.
Correct Answer
Detailed Explanation
The mirror equation is 1/v + 1/u = 1/f, but for concave mirrors, the focal length is considered negative according to the sign convention.
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