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Questions  

A satellite with kinetic energy Ek  is revolving round the earth in a circular orbit. How much more kinetic energy should be given to it so that it may just escape into outer space

a
Ek
b
2 Ek
c
12Ek
d
3 Ek

detailed solution

Correct option is A

Binding energy = – kinetic energyAnd if this amount of energy  (Ek) given to satellite then it will escape into outer space

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