In the solar system, the Sun is in the focus of the system for Sun-Earth binding system. Then the binding energy for the system will be (given that radius of the Earth's orbit around the Sun is 1.5×1011 m and mass of Earth is 6×1024kg)
Massofthesunis1030kg
5.4×1033J
2.7×1033J
2.7×1030J
5.4×1030J
A
5.4×1030J
B
2.7×1033J
C
5.4×1033J
D
2.7×1030J
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Solution
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Binding energy is given by, B.E.=GMmR Where, M= mass of the Sun =1030 kg m = mass of the Earth =6×1024 kg R=1.5×1011 m Binding energy of the system is given by, B.E.=6.67×10−11×1030×6×10241.5×1011=2.7×1033 J
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