Absorptivity of a perfect black body is unity. Which of the following has maximum absorptivity?

Related MCQs

• While the total emissivity of a perfect black body is unity, the same for a real body is
• Absorptivity and reflectivity of a perfect black body are respectively
• A perfect black body is a perfect __________ of radiation.
• The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body).
• Depending on the radiating properties, a body will be black when (where a = absorptivity, p == reflectivity, X = transmissivity.)
• What is the absorptivity of a black body?
• In thermal radiation for a black body (where, ε is emissivity and α is absorptivity)
• 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
• If the absorptivity plus reflectivity of a body equals 1, then the body is known as
• A perfect black body is one which