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प्रश्न
What will be the approximate temperature of water in the lake shown in the following diagram?
(i) At X, and
(ii) At Y?
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उत्तर
The layer at the top level is ice so its temperature is therefore 0°C and temperature at every layer of water below ice increases by 1°C
(i) At X = 1°C since it is the first layer below the ice
(ii) At Y = 4°C since it is the fourth layer below ice
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