Emissivity of a white polished body in comparison to a black body is________________?

Related Mcqs:

Heat transfer takes place as per ________________?

A. zeroth law of thermodynamics B. first law of thermodynamic C. second law of the thermodynamics D. Kirchoff’s law E. Stefan’s law...

Metals are good conductors of heat because________________?

A. their atoms collide frequently B. their atoms-are relatively far apart C. they contain free electrons D. they have high density E. all of the above...

Moisture would find its way into insulation by vapour pressure unless it is prevented by __________________ ?

A. high thickness of insulation B. high vapour pressure C. less thermal conductivity insulator D. a vapour seal E. all of the above...

Joule sec is the unit of_________________?

A. universal gas constant B. kinematic viscosity C. thermal conductivity D. Planck’s constant E. none of the above...

Planck’s law holds good for________________?

A. black bodies B. polished bodies C. all coloured bodies D. all of the above E. none of the above...