An object is placed at a distance of 25cm

Asked by admin @ 17/08/2021 in Science viewed by 410 People

An object is placed at a distance of 25 cm from the pole of a spherical mirror which forms a real inverted image on the same side of object at 37.5 cm from the pole. Calculate the focal lenghth of mirror and find nature of the mirror.

Answered by admin @ 17/08/2021

Given that,

Object distance,u=-25cm
Image distance=-37.5 cm
For a mirror,we know that,
1/f=1v+1/u
=1/(-37.5) +1/(-25)
f=-15cm

This will be a concave mirror
this is your answer I hope so it may be help you

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