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Consider a spherical planet of radius R ...

Consider a spherical planet of radius R . Its density varies with the distance of its centre t as `rho=A-Br`, where A and B are positive constants. Now answer the following questions.
Acceleration due to gravity at a distance `r(rltR)` from its centre is

A

`(4)/(3)piGr(A-Br)`

B

`(4)piGr(A-Br)`

C

`(4)/(3)piGr(A-(3)/(4)Br)`

D

`(4)/(3)piGr(A-(3)/(2)Br)`

Text Solution

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The correct Answer is:
C
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