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An object of length 2.5 cm is placed at ...

An object of length 2.5 cm is placed at the principal axis of a concave mirror at a distance 1.5 f. The image height is

A

`+ 5m`

B

`-5 m`

C

`-10m`

D

`+ 10m`

Text Solution

Verified by Experts

`m = (f)/(f - u) prop (f)/(f - 1.5 f) = - 2cm`
Height image `= m xx "height of object" = - 2 xx 2.5 = - 5 cm`
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