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a bubble of air starts rising from the bottom of the lake. its diameter is 3.6mm at the bottom and 4mm at the surface.the depth of the lake is 250cm and the temp of the surface is 40 degrees. the temp of the bottom of the lake (given tat atm pressure = 76 cm Hg and g=980cms-2 and relative density of mercury = 13.6 )is...... a)9.4 deg b)10.4 deg c)8.4 deg d)12.4 deg
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Moderation Team
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