Question

The focal length f is related to the radius of curvature r of the spherical convex mirror by ______.

Options

• f = r

• f = `-1/2"r"`

• f = `+1/2"r"`

• f = − r

Answer 1

The focal length f is related to the radius of curvature r of the spherical convex mirror by `bb("f" = +1/2"r")`.

Explanation:

For spherical convex mirror

f = + `"r"/2`