Question

A rectangular arcylic plane mirror is bent in
such way that it acts as a concave mirror with
out changing its length and breadth can we
change its focal length? guess and write​
answer more i will mark as brainlist​

Answer 1

ƒσcαℓ ℓεɳɠƭɦ

The distance between the centre of a lens or curved mirror and its focus.

αиѕωєя

No, we cannot change the focal length of a concave mirror, it is oy in the case of convex lens when placed in water.

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