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In a good thermos flask, the main cause of heat loss is?

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Question 18

In a good thermos flask, the main cause of heat loss is?

A

conduction through the cork

B

the plastic base of the thermos flask

C

the silvered walls and shiny metals

D

the outer cover or jacker

Explanation

Share Answer Since the cork is in contact with the walls of the flask, little conduction takes place

Correct option: A

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