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The gravitational force vec(F) upon an o...

The gravitational force `vec(F)` upon an object of mass m placed in external gravitational field `vec(E )_("ext")` is given by `vec(F)=m vec(E )_("ext")`. Consider a fixed mass ring (of mass M, radius R) in y-z plane, with centre at (0,0) and axis of ring along x direction.

The intensity of gravitational field has the maximum value at x equal to

A

`R sqrt(2), -R sqrt(2)`

B

`(R )/(sqrt(3)), -(R )/(sqrt(3))`

C

`(R )/(2), -(R )/(2)`

D

`(R )/(sqrt(2)), -(R )/(sqrt(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
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