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A lens of focal length f is placed in be...

A lens of focal length f is placed in between an object and screen at a distance D. The lens forms two real images of object on the screen for two of its differenct positions, a distance x apart. The two real images have magnifications `m_(1)` and `m_(2)`, respectivelly `(m_(1)gtm_(2))`. Then,

A

`d gt 2f`

B

`d gt 4gf`

C

`M_(1)M_(2)=1`

D

`|M_(1)-|M_(2)|=1`

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The correct Answer is:
B, C
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