Q.

If a spherical shell is cut into two pieces along a chord as shown in figure and point P and Q have gravitational intensities IP and IQ respectively, then
 

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a

IP<IQ

b

IP>IQ

c

IP=IQ=0

d

IP=IQ0

answer is C.

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Detailed Solution

At the centre, we have IP=IQ0  

Gravitational field inside a shall is zero,
Hence, IP=IQ

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If a spherical shell is cut into two pieces along a chord as shown in figure and point P and Q have gravitational intensities IP and IQ respectively, then