12 By the side of a lake the mercury in a barometer stands at 75 cm Mercury used in the barometer 40 has specific gravity of The

Question

12 By the side of a lake the mercury in a barometer stands at 75 cm Mercury used in the barometer 40 has specific gravity of The volume of an air 3 bubble increases by 50 while travelling from the bottom to the top of the lake The depth of the water lake is approximately 1 5 m 2 70 2 10 m

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