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Assertion : For a mass M kept at the cen...

Assertion : For a mass M kept at the centre of a cube of side a the flux of gravitational field passing through its surfaces is `4 pi GM`
Reason : If the direction of a field due to a point source is radial and its dependence on the distancer from the source is given as `(1)/(r^(2))`, its flux through a closed surface depends only on the strength of the source enclosed by the surface and not on the size or shape of the surface

A

If both Assertion and Reason are true and Reason is the correct explanation of Assertion

B

If both Assertion and Reason are true but Reason is not correct explanation of Assertion

C

If Assertion is ture but Reason is false

D

If both Assertion and Reason are false

Text Solution

Verified by Experts

The correct Answer is:
A
You can make an analogy with Gauss.s law in electrostatics.
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