Question

a needle 1 m high is placed at the distance of 0.1 m from a convex mirror of focal length 00.5 m. determine the position and height of image.
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Answer 1

Answer:

using mirror formula

1/v +1/u =1/f

f=0.05m

u=0.1m

we get

v=0.1

by magnification formula

v/u =height of image/height of object

0.1/0.1=h/0.01

height of image=0.01m=1cm

Explanation:

The above And is Explanation