Multiple Choice
Absorptivity of a body will be equal to its emissivity
A) at all temperatures
B) at one particular temperature
C) when system is under thermal equi-librium
D) at critical temperature
E) for a polished body.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q8: For a laminar flow of fluid in
Q9: Walls of a cubical oven are of
Q10: The total emissivity power is .defined as
Q11: 40% of incident radiant energy on the
Q12: In regenerator type heat exchanger, heat transfer
Q14: The thermal radiation emitted by a body
Q15: Depending on the radiating properties, a body
Q16: Depending on the radiating properties, a body
Q17: A tank painted with which of the
Q18: If the temperature of a solid surface