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Two speres of radii r and 2r touching e...

Two speres of radii r and 2r touching each other the force of attraction betweeen them is proportional

A

`r^(-2)`

B

`r^(2)`

C

`r^(4)`

D

`r^(6)`

Text Solution

Verified by Experts

The correct Answer is:
C
`F=(Gm_(1)m_(2))/((3r)^(2))`
`=(Gxx(4)/(3)pir^(3)rhoxx(4)/(3)pi(2r)^(3)rho)/(9r^(2))`
or `Fpropr^(4)`
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MCGROW HILL PUBLICATION-GRAVITATION -HIGHER ORDER THINKING QUESTIONS
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