In a thermos flask, the walls are made of shiny glass. Which one of the following heat loss process is minimised by using shiny walls?

Question

Vimal Swarnkar · Accepted Answer

(c) Radiation. Shiny (silvered) walls reflect infrared, cutting heat loss by radiation. The vacuum between walls cuts conduction and convection.

Answer

(a) Convection

Answer

(b) Conduction

Answer

(d) Both radiation and convection

Geo-Scientist Prelims 2020 General Studies Q108: In a thermos flask, the walls are made of shiny glass. Which one of…