First slide

Spherical/Curved mirrors

Question

A boy stands straight infront of a mirror at a distance of 30cm away from it. He sees his erect image whose height is $\frac{1}{5} th$ of his real height. The mirror he is using is

Moderate

A

Plane mirror
B

Convex mirror
C

Concave mirror
D

Plano-convex mirror

Solution

Size is $\frac{1}{5}$ . It can’t be plane and concave mirror, because both conditions are not satisfied in plane or concave mirror. Convex mirror can meet all the requirements

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