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Two equal negative charges -q each are f...

Two equal negative charges `-q` each are fixed at points `(0,-a)` and `(0,a)` on y-axis. A positive chaarge `Q` is released from rest at the point `(2a,0)` on the x-axis. The charge Q will

A

execute simple harmonic motion about the origin

B

move to the origin and remain at rest

C

move to inifinity

D

execute oscillatory but not simple harmonic motion

Text Solution

Verified by Experts

The correct Answer is:
D

`F=QE=(QKQx)/((R+x^(2))^(3//2))`
`F prop (-x)`
(required equation for SHM)
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