Question

the focal length of a convex mirror is 10 cm how far is centre of curvature from the pole and from the focus give reason

Answer 1

Focal length = 10 cm cm
Radius of curvature = 2 x focal length
R = 2 x 10
    = 20 cm

from the focus 1/4th of the radius of curvature v.

so. distance from focus = 20/4 = 5 cm

Answer 2

distance from P and F is equal to the distance between F and C

given distance P and F = 10 cm

so distance of F and C = 10 cm

distance of P and F = 20 cm

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