Q: In a thermos flask, the walls are made of shiny glass. Which one of the following heat loss processes is minimised by using shiny walls?
(a)Convection
(b)Conduction
(c)Radiation
(d)Both radiation and convection
Correct Answer: (c)
The correct answer is (c) 'Radiation'. This question from the Quantitative Aptitude & Data Interpretation domain tests knowledge of Numerical Ability.