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The orbital velocity of a planet revolvi...

The orbital velocity of a planet revolving close to earth's surface is

A

`sqrt(2gR)`

B

`sqrt(gR)`

C

`sqrt((2g)/R)`

D

`sqrt(g/R)`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • If V_e is the escape velocity and V_0 is orbital velocity of a satellite for orbit close to the earth's surface. Then these are related by

    A
    `V_0 = sqrt(2) V_e,`
    B
    `V_0 = V_e`,
    C
    `V_e = (V_0)/(2)`
    D
    `V_e = sqrt(2)V_0`

  • The orbital velocity of a body close to the earth's surface is

    A
    `8 "kms"^(-1)`
    B
    `11.2 "kms"^(-1)`
    C
    `3 xx 10^(8) "ms"^(-1)`
    D
    `2.2 xx 10^(3) "kms"^(-1)`

  • If v_(e) is escape velocity and v_(0) , is orbital velocity of satellite for orbit close to the earth's surface. Then are related by

    A
    `v_(0)=sqrt(2)v_(e)`
    B
    `n_(0)=n_(e)`
    C
    `v_(e)=(v_(0))/2`
    D
    `v_(e)=sqrt(2)v_(0)`

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