What is the correct answer?


The amount of radiation mainly depends upon the

A. Nature of the body

B. Temperature of the body

C. Type of surface of the body

D. All of these

Correct Answer :

D. All of these

Related Questions

According to Stefan Boltzmann law, the total radiation from a black body… Thermal conductivity of non-metallic amorphous solids with decrease in… The unit of overall coefficient of heat transfer is The ratio of the energy absorbed by the body to total energy falling on… A designer chooses the values of fluid flow rates and specific heats in… The most commonly used method for the design of duct size is the A steam pipe is to be insulated by two insulating materials put over each… Heat transfer by radiation mainly depends upon Wiens law states that the wave length corresponding to ________ is proportional… The ratio of Nusselt number and the product of Reynold's number and Prandtl… The product of Reynolds number and Prandtl number is known as The radiation emitted by a black body is known as Thermal conductivity of air at room temperature in kcal/m hr °C is… Pick up the wrong case. Heat flowing from one side to other depends directly… Heat flows from one body to other when they have Which of the following statement is correct? Which of the following property of air does not increase with rise in… The heat transfer by conduction through a thick cylinder (Q) is given… Heat is transferred by all three modes of transfer, viz. conduction, convection… Thermal conductivity of solid metals with rise in temperature normally Unit of thermal conductivity in S.I. units is Thermal conductivity of wood depends on When absorptivity (α) = 1, reflectivity (ρ) = 0 and transmissivity… In regenerator type heat exchanger, heat transfer takes place by In heat transfer, conductance equals conductivity (kcal/hr/sq.m/ °C/cm)… The ratio of the emissive power and absorptive power of all bodies is… Film coefficient is defined as the ratio of An electric cable of aluminium conductor (k = 240 W/mK) is to be insulated… Heat transfer in liquid and gases takes place by Upto the critical radius of insulation,