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An object kept near a convex lens of foc...

An object kept near a convex lens of focal length f, executes SHM between P and Q according to the equation `y=A sinomegat`, O being the mean position. Take x-axis as the principal axis of the lens and `A lt lt D` to answer the following questions:

Q. The amplitude of oscillation of the image is

A

Amplitude of oscillation of its image is `2A`

B

Amplitude of oscillations of its image is `(A)/(2)`

C

Phase difference between the object and its image is `pi`.

D

Phase difference between the object and its image is zero.

Text Solution

Verified by Experts

The correct Answer is:
B, C
`(1)/(v)-(1)/((-3f))=(1)/(f)`
`v=(3f)/(2)`
`(h_(i))/(h_(0))=(v)/((-3f))`
`h_(i)=-(h_(0))/(2)`
Amplitude `=(A)/(2)`
Phase differnece is `pi`.
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