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JEE Main 16 Apr 2018 Shift 1 Solved Paper

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Question : 4

Total: 90

Two particles of the same mass m are moving in circular orbits because of force,given by F(r)=

−r3 The first particle is at a distance r=1, and the second, at r=4. The best estimate for the ratio of kinetic energies of the first and the second particle is closest to :

6×10−2
3×10−3
10−1
6×102

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