Depending on the radiating properties, a body will be black when (where a = absorptivity, p == reflectivity, X = transmissivity.)

Related MCQs

• Depending on the radiating properties, a body will be white when (where a = absorptivity, p = reflectivity, x = transmissivity)
• Depending on the radiating properties, a body will be opaque when (where a = absorptivity, p = reflectivity, X = transmissivity.)
• Absorptivity and reflectivity of a perfect black body are respectively
• Depending on the radiating properties, body will be transparent when
• All substances emit radiation, the quality and quantity depending upon the absolute temperature and the properties of the material composing the radiating body. The above statement is known as the statement of
• Absorptivity of a perfect black body is unity. Which of the following has maximum absorptivity?
• If the absorptivity plus reflectivity of a body equals 1, then the body is known as
• The ratio of total radiating power to the absorptivity of the body depends upon the __________ as per Kirchoff‟s law.
• As per Kirchoff‟s law, the ratio of the total radiating power to the absorptivity of a body depends on the
• The sum of reflectivity and absorptivity for an opaque body is equal to