A) In (a), the incident rays are diverged after refractions, so lens is concave.
B) In (b), the incident rays are converged after refraction so mirror is convex.
C) In (a), the incident rays are diverged after refraction so mirror is convex.
D) In (b), the incident rays are converged after refraction so lens is concave.
Correct Answer: A
Solution :
In (a), the incident rays are diverged after refraction, so the lens is concave and in (b), the incident rays are converged after refraction, so the lens is convex.
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