Question

in the thermo flask there is a vacuum between two glass tubes what is the important of the vaccum from the following write the correct option number of answer in the box 1. neither conduction nor conduction occurs 2. conduction and convection occur. 3. to transfer the heat to the outer parts. 4. to reflect the heat

Answer 1

It is option 1.
The vacuum neither lets the air come in nor lets it go out.

Plz mark as brainliest..

Answer 2

The importance of the vacuum is so that there is neither conduction nor convection.

In the conduction, the heat is transferred from the hot object to a cold object with the physical contact while in convection the heat is transferred from the object with the moving fluid then it will go somewhere else.

With vacuum, it will be impossible to transfer heat.