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An air bubble starts rising from the bot...

An air bubble starts rising from the bottom of a lake. Its diameter is ` 3.6 mm` at the bottom and `4 mm` at the surface. The depth of the lake is `250 cm` and the temperature at the surface is `40^@ C`. What is the temperature at the bottom of the lake? Given atmospheric pressure = `76 cm of Hg and g = 980 cm//s^2`.

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An air bubble starts rising from the bottom of a lake. Its diameter is 3.6 mm at the bottom and 4mm at the surface. The depth of the lake is 250 cm and the temperature at the surface is 40^@C . The atmospheric pressure is 76 cm of Hg and g=980 cm.s^-2 . What is the temperature at the bottom of the lake?

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