Question

Q10. An object is placed at distance of 25 cm from a spherical mirror and its image is
formed behind the mirror at distance of 5 cm. Find focal length? Is it concave or
convex mirror?​

Answer 1

Explanation:

u= -25

v= +5

f= uv÷(u+v)

f=6.25 cm

it is a convex mirror

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