Two identical spheres are placed in contact with each other. The force of gravitation between the spheres will be proportional to (R = radius of each sphere)
A
R
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B
R2
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C
R4
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D
Noneofthese
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Solution
The correct option is CR4 F=GM×MR2=G×(43πR3ρ)2(2R)2⇒F∝R6R2∝R4