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In Fig.(i), a lens of focal length 10 cm...

In Fig.(i), a lens of focal length `10 cm` is shown. It is cut into two parts and placed as shown in Fig.(ii). An object AB of light `1 cm` is placed at a distance of `7.5 cm.` The height of the image will be

A

`2 cm`

B

`1 cm`

C

`1.5 cm`

D

`3 cm`

Text Solution

Verified by Experts

The correct Answer is:
A
`1/F=1/(f_1)+1/(f_2)=1/10+1/10`
`:. F=5 cm`
`1/v-1/-7.5=1/(+5)`
`:. V=+15 cm`
`m=v/u=(+15)/(-7.5)=-2`
`I=mO=(-2)(1cm)`
`=-2 cm`
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