Home Physics Gravitation Assertion & Reason In this question, a statement of assertion …
Physics Gravitation Assertion & Reason MCQ (Single Correct)

In this question, a statement of assertion is followed by a statement of reason (R). Mark the correct choice as:

Assertion: If earth were a hollow sphere, gravitational field intensity at any point inside the earth would be zero.
Reason: Net force on a body inside the sphere is zero.

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 the correct explanation of assertion.
C
If assertion is true but reason is false.
D
If assertion is false but reason is true.

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Text Solution

Verified by Experts
The correct answer is:
A

A uniform shell of matter exerts no gravitational force on a particle located inside it. This also

means if a particle is located inside a uniform solid sphere of matter at distance from its centre, the gravitational force exerted on the particle is due only to the mass that lies within a sphere of radius .
This mass is given by , where is density of the sphere.

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