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Distance between divergent lens and obje...

Distance between divergent lens and object is m times than focal length. Linear magnification of lens is ......

A

m

B

`1/m`

C

m+1

D

`(1)/(m+1)`

Text Solution

Verified by Experts

The correct Answer is:
A, D
Linear magnification `m=v/u,u=mf implies u/f=m`
For lens,`1/f=1/v-1/u`
`therefore u/f=u/v-1[because` Multiplied by u]
`thereforem=1/M-1`
`therefore1/M=m+1`
`therefore M=(1)/(m+1)`
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