The rate of energy emission from unit surface area through unit solid angle, along a normal to the surface, is known as ________________?

Related Mcqs:

Unit of thermal conductivity in M.K.S. units is ___________________?

A. kcal/kg m2 °C B. kcal-m/hr m2 °C C. kcal/hr m2 °C D. kcal-m/hr °C E. kcal-m/m2 °C...

The time constant of a thermocouple is_______________?

A. the time taken to attain the final temperature to be measured B. the time taken to attain 50% of the value of initial temperature difference C. the time taken to attain 63.2% of the value of initial temperature difference D. determined by the time taken to reach 100°C from 0°C E. none of the … The time constant of a thermocouple is_______________?Read More...

Unit of thermal diffusivity is_________________?

A. m2/hr B. m2/hr°C C. kcal/m2 hr D. kcal/m.hr°C E. kcal/m2 hr°C...

All radiations in a black body are___________________?

A. reflected B. refracted C. transmitted D. absorbed E. partly reflected and partly absorbed...

Absorptivity of a body will be equal to its emissivity___________________?

A. at all temperatures B. at one particular temperature C. when system is under thermal equi-librium D. at critical temperature E. for a polished body...