Freshers India

The concept of overall coefficient of heat transfer is used in case of heat transfer by                        

The emissive power of a body depends upon its                        

The energy distribution of an ideal reflector at higher temperatures is largely in the range of                        

The ratio of heat flow Q1/Q2 from two walls of same thickness having their thermal conductivities as ATj - 2K2 will be                        

The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as                        

The ratio of the energy absorbed by the body to total energy falling on it is called