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A particle of mass m lies at a distance ...

A particle of mass m lies at a distance r from the centre of earth. The force of attraction between the particle and earth as a function of distance is F(r ),

A

`F(r) prop 1/(r^(2))` for `r lt R`

B

`F(r) prop 1/(r^(2))` for `r ge R`

C

`F(r) prop r` for `r lt R`

D

`F(r) prop 1/r` for `r lt R`

Text Solution

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The correct Answer is:
B, C
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