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Which one of the following plots represe...

Which one of the following plots represents the variation of the gravitational field on a particle with distance `r` due to a thin spherical shell of raduis `R`? (`r` is measured from the centre of the spherical shell).

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
B
(b) Gravitational field due to the thin spherical shell.
Inside the shell,
F=0 (For `r lt R`)
On the surface of the shell,
`F=(GM)/( R^(2))` (For r=R)
Outside the shell,
`F=(GM)/(r^(2))` ( For `r gt R`)
The variation of F with distance r from the centre is as shown in figure.
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