Question

# Figure shows the variation of energy with the orbit radius r of a satellite in a circular motion. Select the correct statement.

A
Z is total energy, Y is kinetic energy and X is potential energy.
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B
X is kinetic energy, Y is total energy and Z is potential energy.
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C
X is kinetic energy, Y is potential energy and Z is total energy.
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D
Z is kinetic energy, X is potential energy and Y is total energy.
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Solution

## The correct option is C X is kinetic energy, Y is potential energy and Z is total energy.Kinetic Energy of the Satellite =GMm2rPotential Energy of the satellite =−GMmr Total Energy of the Satellite =−GMm2rHence, Kinetic Energy Cure will be above 0 , hence X Potential energy will be the lowest curve , hence Y Total Energy is the curve is below 0 , but higher magnitude than Potential Energy . Hence , Z

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