A black body absorbs all radiations. As a result of absorption of these radiations

Related MCQs

• All radiations in a black body are
• The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body).
• A body which transmits all the radiations falling on it is known as
• Emissivity of a white polished body in comparison to a black body is
• While the total emissivity of a perfect black body is unity, the same for a real body is
• 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
• Total emissivity of polished silver compared to black body is
• According to Stefan’s law, the total radiation from a black body per second per unit area is proportional to
• Depending on the radiating properties, a body will be black when (where a = absorptivity, p == reflectivity, X = transmissivity.)
• The total emissivity power is .defined as the total amount of radiation emitted by a black body per unit