Question

How does a vacuum flask minimize heat loss due to conduction, convection and radiation?

Plz answer will be rewarded the brainleast answer

Answer 1

The silver coating on the inner bottle preventsheat transfer by radiation, and the vacuumbetween its double wall prevents heat movingby convection. The thinness of the glass walls stops heat entering or leaving the flask by conduction. The case surrounding the flaskprovides additional insulation.

source:internet.

Answer 2

cause 2 modes of heat transfer out of the 3 are absent. they are conduction and convection

there is no conduction or convection because no free moving particles exist in vacuum flask and neither are there any particles in contact between the flask and the surface of the testing apparatus