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A particle of mass 10g is kept on the su...

A particle of mass 10g is kept on the surface of a uniform sphere of mass 100 kg and radius 10 cm. Find the work to be done against the gravitational force between them, to take the particle far away from the sphere (you may take `G=6.67xx10^(-11)Nm^(2)//kg^(2))`

A

`13.34 xx 10^(-10) J`

B

`3.33 xx 10^(-10) J`

C

`6.67 xx 10^(-9) J`

D

`6.67 xx 10^(-10) J`

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • A particle of mass 10g is kept on the surface of a uniform sphere of masss 100kg and radius 10cm. Find the work to be done against the gravitational force between them to take the particel far away from the sphere (you may take G = 6.67xx10^(-11) Nm^2 /kg^2)

    A
    `3.33xx10^(-10)J`
    B
    `13.34xx10^(-10)J`
    C
    `6.67xx10^(-10)J`
    D
    `6.67xx10^(-9) J`

  • A particle is kept on the surface of a uniform sphere of mass 100 kg and radius 10 cm. Find the work to be done per unit mass against the gravitational force between them, to take the particle far away from the sphere (you may take h=6.67 xx 10^(-11) "Nm"^(2) "kg"^(-2) )

    A
    `13.34 xx 10^(-10) J`
    B
    `3.33 xx 10^(-10) J`
    C
    `6.67 xx 10^(-9)J`
    D
    `6.67 xx 10^(-8) J`

  • Calculate the gravitational force of attraction between two spherical bodies, each of mass 1kg placed at 10m apart (G = 6.67 xx 10^(-11)Nm^(2)//kg^(2)) .

    A
    `6.67 xx 10^(-13)N`
    B
    `6.67xx 10^(-11)N`
    C
    `6.67 xx 10^(-7)N`
    D
    None of these

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