The vacuum in a thermoflask reduces heat loss resulting f...
The vacuum in a thermoflask reduces heat loss resulting from
radiation only
conduction and convection only
radiation and convection only
conduction only
Correct answer is B
The vacuum of a thermos flask prevents heat loss by conduction and convection, conduction because vacuum is a poor conductor of heat, convention because
In the diagram above , the current I is ...
Which of the following statements about evaporation is not correct? ...
Semiconductor is a class of solid whose conductivity increases with an increase in ...
Which of the following scientists postulated that moving particles exhibit wave properties? ...