A.absorptivity = 0
B.reflectivity = 0
C.absorptivity = reflectivity = 1
D.absorptivity + reflectivity = 1
Related Mcqs:
- In case of a body transparent to thermal radiation
- Gases have poor
- The diathermous body is one that ______________?
- A radiation shield should have
- A body cools from 90?C to 80?C in 5 minutes. Under the same external conditions to cool from 80?C to 70?C the body will take
- 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
- A body cools from 80?C to 70?C in 10 minutes. The time taken by the body for further cooling to 60?C will be
- Body A is kept in contact with body B. Heat will flow from A to B, if
- If the absorptivity plus reflectivity of a body equals 1, then the body is known as
- The total solar radiation incident on a body is 1000 kcal/min. The body reflects 400 kcal/min. If the transmissivity of the surface will be
