Answer :
The interior of a thermos bottle is silvered to minimize heat transfer primarily due to radiation, reflecting heat back into the interior. The interior of a thermos bottle is silvered to minimize heat transfer due to A) radiation.
The interior of a thermos bottle is silvered to minimize heat transfer due to A) radiation. The silver coating reflects heat radiation, reducing the amount of heat that is lost or gained through this method. There are three methods of heat transfer: conduction, convection, and radiation. Conduction is the transfer of heat through direct contact, convection is the transfer of heat by the circulation of a fluid (usually a liquid or a gas), and radiation is the transfer of heat in the form of electromagnetic waves.
To reduce other forms of heat transfer, a thermos also includes a vacuum layer which eliminates convection and minimizes conduction, since there is no medium for conducting heat. Further, the design of a thermos typically incorporates features such as a long neck and a stopper to reduce heat transfer by conduction and convection. Rubber supports and air layers can also act as additional insulating layers to further minimize these heat transfers.
