The surface water in a lake in going to freeze. Now the temperature of water at the bottom is

274 K

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227 K

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100 K

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0 K

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Solution

The correct option is A $274 K$
As water freezes, cold water ( or ice formed) comes on the surface and warm water goes down.
Since the freezing temperature of water is $0^{o} C$ or 273 K.
So water at the bottom should be at higher temperature. From options, only higher temperature relative to 273K is 274 K.
Answer is 274K.

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