According to Kirchoff’s law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a

Related MCQs

• 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
• "The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium". This is __________ law.
• Absorptivity of a perfect black body is unity. Which of the following has maximum absorptivity?
• 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
• If the temperature of a solid surface changes form 27°C to 627°C, then its emissive power changes in the ratio of
• 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 body will be equal to its emissivity
• The absorptivity of a body is equal to its emissivity
• The sum of reflectivity and absorptivity for an opaque body is equal to