181
Q:
| A) convex lens | B) convex mirror |
| C) concave lens | D) concave mirror |
Answer: C) concave lens
Explanation:
Explanation:

The lens which have atleast one inward curved surface is a concave lens. Concave ens is a diverging lens as it spreads out light rays that have been refracted through it.
A concave lens is thinner at its centre than at its edges.
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