Question

By using a concaves mirror image of a tree is focused on a screen. The distance between the screen and the mirror is

A) Equal to twice the focal length of the concave mirror

B) Equal to one fourth of the focal length of the concave mirror

C) Equal to half the radius of curvature of the concave mirror

D) Equal to the radius of curvature of the concave mirror​

Answer 1

Answer:

An object at infinity (in this case the tree) when focused through a concave mirror forms an image at the focus so the distance between the screen and the mirror is equal to the focal length of the mirror, and not twice the focal length

Explanation:

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