At perihelion, the gravitational potential energy of Pluto in its orbit has
its maximum value
its mimimum value
value which depends on sense of rotation
the same value as at every other point in the orbit
A
its maximum value
B
the same value as at every other point in the orbit
C
its mimimum value
D
value which depends on sense of rotation
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Solution
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The gravitational potential energy is given by P=−GMmr. We can observe that its a negative value and r is minimum at perihelion. Thus GMmr is highest and potential energy −GMmr is minimum.
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