The emissivity of a body will be equal to absorptivity when

Related MCQs

• Absorptivity of a body will be equal to its emissivity
• The absorptivity of a body is equal to its emissivity
• When a body is in thermal equilibrium with its surroundings, the absorptivity and the emissivity of the body are same. This Law is known as
• Absorptivity of a perfect black body is unity. Which of the following has maximum absorptivity?
• Emissivity and absorptivity of a surface are equal for radiation
• In thermal radiation for a black body (where, ε is emissivity and α is absorptivity)
• The statement that the emissivity and absorptivity of a surface is surrounded by its own temperature are the same for both monochromatic and total radiation, is known as
• The sum of reflectivity and absorptivity for an opaque body is equal to
• If the absorptivity plus reflectivity of a body equals 1, then the body is known as
• At all wavelengths and temperatures the monochromatic emissivity of a white body is equal to