(a) Mass of air is negligible
(b) Mass of air does not remain constant
(c) Air is not perfect gas
(d) Pressure inside the balloon is less than that of the atmospheric pressure
Answer-b
(6)
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(a) Mass of air is negligible
(b) Mass of air does not remain constant
(c) Air is not perfect gas
(d) Pressure inside the balloon is less than that of the atmospheric pressure
Answer-b
(6)
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