Question

with the help of diagram explain the working of a thermos flask.​

Answer 1

Explanation:

The outer casing of a thermos flask is made up of plastic or metal. Plastic, being a poor conductor of heat, acts as an insulator preventing the heat loss through conduction.

Answer 2

the construction and working of a thermos flask with the help of a labelled diagram. ... The outer casing of a thermos flask is made up of plastic or metal. Plastic, being a poor conductor of heat, acts as an insulator preventing the heat loss through conduction.

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