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When an object is at a distance u(1) and...

When an object is at a distance `u_(1)` and `u_(2)` from the optical centre of a lens, a real and virtual image are formed respectively, with the same magnification.The focal length of lens is:

A

`u_(1)+u_(2)`

B

`(u_(1)+u_(2))//2`

C

`u_(1)+u_(2)//2`

D

`sqrt(u_(1)*u_(2))`

Text Solution

Verified by Experts

The correct Answer is:
B
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RESNICK AND HALLIDAY-GEOMETRICAL OPTICS : REFRACTION-Practice questions(single correct choice type)
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