Question

a rectangular acrylic plane mirror is bent in such way that it acts as a concave mirror.without changing its length and breadth can we change its focal length? Guess and write​

Answer 1

Answer:

Yes, by increasing the radius of curvature of the mirror

Explanation:

By doing so, you effectively decrease the focal length of the cylindrical mirror so formed.

Hope this solution was helpful, if so pls mark as Brainliest :)