Thermal diffusivity of a substance is ____________________?

Related Mcqs:

Heat transfer in liquid and gases takes place by_____________________?

A. conduction B. convection C. radiation D. conduction and convection E. convection and radiation...

Which of the following has least value of conductivity_________________?

A. glass B. water C. plastic D. rubber E. air...

A non-dimensional number generally associated with natural convection heat transfer is________________?

A. Grashoff number B. Nusselt number C. Weber number D. Prandtl number E. Reynold number...

Total emissivity of polished silver compared to black body is___________________?

A. same B. higher C. more or less same D. very much lower E. very much higher...

The total emissivity power is .defined as the total amount of radiation emitted by a black body per unit_______________?

A. temperature B. thickness C. area D. time E. area and time...