The emissivity of a body will be equal to absorptivity when

Heat Transfer Mcqs
BILAL KHATTAK0

A.Body is at low temperature
B.Body is at high temperature
C.Temperature of body is rising
D.Temperature of body is falling
E.Body is in thermal equilibrium

Related Mcqs:

  1. Emissivity and absorptivity of a surface are equal for radiation
  2. If the absorptivity plus reflectivity of a body equals 1, then the body is known as
  3. 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
  4. At all wavelengths and temperatures the monochromatic emissivity of a white body is equal to
  5. A monopolistic firm’s average revenue is always
  6. The diathermous body is one that ______________?
  7. Our body does not evaporate despite high temperature and does not freeze despite low temperature because:
  8. The buoyant force on a floating/submerged body is
  9. A black body absorbs all radiations. As a result of absorption of these radiations
  10. 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

Leave a Reply

Your email address will not be published. Required fields are marked *