Question

in the thermos flask, there is a vacuum between two glass tubes.what is the importance of the vacuum from the following A)neither conduction nor convection occurs B) Conduction & Convection occurs C)To transfer the heat to the outer parts D) To reflect the heat

Answer 1

Hi-friend,

The-answer-is-definitely-B-because-I-studied-this.

Hope-this-helps-u....

Thanks...

Answer 2

The correct option to this question is A- neither conduction nor convection occurs.

In the thermos flask, there is a vacuum between the two glass tubes.

The importance of the vacuum is the prevention of conduction and convection.

It’s simple features prevent virtually all heat transfer by either conduction, convection, or radiation.