Question

A concave mirror forms a real image of an object placed
in front of it at a distance 30 cm, of size three times the
size of object. Find (a) the focal length of mirror
(b) position of image.
homin front of me​

Answer 1

Answer:

Hey dear.. !!

Here is your answer...!

Given ,u=-30

m=-3

m=-v/u

-3=-v/-30

v=-90cm

1/v+1/u=1/f

1/-90+1/-30=1/f

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