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Per NCERT §5.7 (Points 7), the zero of GRAVITATIONAL potential energy is conventionally chosen at which level?
AThe ground (reference)
BThe launching height
CInfinity always
DThe centre of Earth
Answer & Solution
Correct answer: A. The ground (reference)
NCERT §5.7 Points 7: for mgh form, zero is taken at ground level. PE is defined up to an additive constant.
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