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
Mercury is suitable as a barometric fluid because it? ...
If the refractive index of water is 1.33, what is the critical angle for a water-air boundary? ...
The amount of heat required to raise the temperature of a body is ...
In semi-conductor, the carriers of current at room temperature are ...
The magnitude of the force experienced by a charge of 1.6 x 10−8C in a uniform electric field...