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A point object is placed on the axis of ...

A point object is placed on the axis of a thin convex lens of focal length 0.05 m at a distance of 0.2 m from the lens and its image is formed on the axis. If the object is now made to oscillate along the axis with a small amplitude of A cm, then what is the amplitude of oscillation of the image ?
[you many assume, `1/(1+x) = 1-x`, where `x lt lt 1`]

A

`(4A)/9 xx 10^(-2) m`

B

`(5A)/9 xx 10^(-2) m`

C

`A/3 xx 10^(-2) m`

D

`A/9 xx 10^(-2) m`

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