A black body is defined as a perfect absorber of radiations. It may or may not be a perfect emitter of radiations.

Related MCQs

• Electromagnetic wave theory of light could not explain Black Body radiations.
• As the wavelength of the radiation decreases, the intensity of the black body radiations                          
• The energy distribution is not uniform for any given temperature in a perfect black body.
• Which impurity is added to gallium phosphide to make it an efficient light emitter?
• For an object other than a black body, it’s emissivity, e is                                
• The sun emits maximum radiation of 0.52 micron meter. Assuming the sun to be a black body, Calculate the emissive ability of the sun’s surface at that temperature
• The law governing the distribution of radiant energy over wavelength for a black body at fixed temperature is referred to as
• A furnace emits radiation at 2000 K. Treating it as a black body radiation, calculate the monochromatic radiant flux density at 1 micron m wavelength
• Which of the following is the characteristic of a black body?
• The radiations emitted by hot bodies are called as