NEET Physics Refraction Assertion Reason Question
Assertion (A): A convex lens can form a virtual image. | Reason (R): For a thin lens with an object at infinity, the refractive index difference affects the focal length.
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, but R is true.
Correct Answer
Detailed Explanation
A convex lens can form a virtual image if the object is placed within the focal length. The reason explains how the refractive index affects focal length but does not explain the formation of a virtual image.
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