A body whose absorptivity is constant at all wavelengths of radiation, at a given temperature is known as

Related MCQs

• The amount of radiation mainly depends on:
• __________ states that the rate of heat flow through a uniform material is proportional to the area and temperature and inversely proportional to the length of the path of flow.
• The (emissivity) of a black body is:
• A black body is perfect
• A powder, all the particles of which pass through sieve no. 44 is called?
• Size reduction is also known as:
• Lyophilization is also known as:
• Degree of mixing is also known as:
• When fluid is heated, the currents set up may cause mixing of fluid. Such heat transfer is known as:
• In mechanism of mixing, which is also known as Macromixing?