Question

The silver coating on the inner bottle of a thermos flask

• A. prevents heat transfer by conduction
• B. prevents heat transfer by convection
• C. prevents heat transfer by radiation
• D. prevents heat transfer by absorption

Answer 1

The correct option is C prevents heat transfer by radiation

Due to the silver coating on the inner bottle, a shiny surface is formed. And these shiny surface act as a good reflector of heat

As a result, they prevent the transfer of heat by radiation.