Question #ef56d

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Day
Jan 8, 2018

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Explanation:

In thermos flask conduction,convection(vaccume is there between two walls inside it) cannot take place.And radiation which does not need any medium for the transfer of heat can take place, so to stop loss of heat some structure is there.We can reflect the heat back caused by radiation, so there are heat reflectors (silver coating)arranged in it.

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