A pan filled with hot food cools from 94...

A pan filled with hot food cools from `94^(@)C` to `86^(@)C` in 2 minutes when the room temperature is at `20^(@)C`. How long will it take to cool from `71^(@)C` to ` 69^(@)C`? Here cooling takes place according to Newton's law of cooling.

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SL ARORA-Thermal Properties of Matter-Exercise

The ratio of the areas of cross section of two rods of different mater...
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A room at 20^@C is heated by a heater of resistence 20 ohm connected t...
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A pan filled with hot food cools from 94^(@)C to 86^(@)C in 2 minutes ...
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MICROSCOPE
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