Question

the image of an object placed at the distance of 50 cm on the principal axis of a concave mirror forms its pole find the focal length and the linear magnification of the mirror​

Answer 1

Answer:

ANSWER

Focal length of concave mirror f=−10 cm

Object distance u=−15 cm

Using

v

1

+

u

1

=

f

1

∴

v

1

+

−15

1

=

−10

1

⟹ v=−30 cm

Since v is negative, so image formed is real.

Magnification m=

u

−v

∴ m=−

−15

(−30)

=−2

Since m is greater than 1, so magnified image is formed.

Correct answer is option C.

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