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Dallii.-Dropper OPIC:- FLUID MECHANISM u...

Dallii.-Dropper OPIC:- FLUID MECHANISM ury. If the Q5. Radius of an air bubble at the bottom of the lake 60° with is r and it becomes 2r when the air bubbles rises ed in the to the top surface of the lake. If P cm of water be mercury the atmospheric pressure, then the depth of the lake is (A) 2p (B) 8p (C) 4p (D) 7p А, у

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