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The graph shows how the magnification m ...

The graph shows how the magnification `m` produced by a convex thin lens varies with image distance `v`. What was the focal length of the used ?

A

`(b)/(c )`

B

`(b)/(ca)`

C

`(bc)/(a)`

D

`(c )/(b)`

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • An object is placed at a distance of 1.5 m from a screen and a convex lens is interposed between them. The magnification produced is 4 . What is the focal length of the lens ?

    A
    `1m`
    B
    `0.5 m`
    C
    `0.24 m`
    D
    `2 m`