The surface of a thermos flask is kept shiny | vedclass

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Question

(D) thermos flask is designed to minimize heat transfer by conduction,convection,and radiation. Shiny surfaces are poor absorbers and excellent reflec

Vedclass · Accepted Answer

To reflect all external radiation

Vedclass · Answer

(D) thermos flask is designed to minimize heat transfer by conduction,convection,and radiation. Shiny surfaces are poor absorbers and excellent reflectors of thermal radiation. By keeping the surface shiny,the flask reflects incoming external radiation away from the contents,preventing heat gain from the surroundings. Similarly,it prevents heat loss from the inside by reflecting internal radiation back into the flask. Therefore,the correct reason is to reflect all external radiation.

The surface of a thermos flask is kept shiny because:

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