When a body is in thermal equilibrium with its surroundings, the absor – McqOptions

MCQOPTIONS

1.	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.	Wein's Law
B.	Kirchhoff's law
C.	Stefan Boltzmann's law
D.	None of the above
E.	Nichrome
Answer» C.

Discussion

No Comment Found

Related MCQs

Two bodies one hot and the other cold are kept in vacuum. What will happen to the temperature of the hot body after sometime?
If a body reflects entire radiation incident on it, then it is known as
In a psychrometric chart the abscissa represents
The highest value of thermal conductivity is expected for
Elongation of a rod when heated
Ablation heat transfer method is used on
Plank's law of radiation is applicable to
If the amount of radiant energy received per unit area per second from the sun is measured at the Earth, Mars and Jupiter it will be
The phenomenon of boiling the milk in an open container when milk spills over the vessel is termed as
The surface temperatures of a flat wall are 650?C and 450?C respectively and the thermal conductivity of the wall material is 0.30 kcal/m-hr-?C. The heat flux for a wall of 20 cm thickness will be