Question

A concave mirror produces three times magnified real image of object placed at 10 cm, the focal length of mirror is *

Answer 1

Explanation:

Given magnification m=3

and object distance u=10 cm and we know,

Magnification m=

u

−v

−v=3×−10

v=30 cm

Thus the image is formed at distance of 30 cm.

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Answer 2

Explanation:

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