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[" 8.If an air bubble rises from the bot...

[" 8.If an air bubble rises from the bottom of a mercury tank to the top its volume becomes "1(1)/(2)" times."],[" When normal pressure is "76cm" of "Hg" ,then the depth of the Hg tank is "],[[" a) "38cm," b) "132cm," c) "76cm," d) "49cm]]

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