When a body reflects entire radiation incident on it, then it is known as____________?

Related Mcqs:

Which of the following methods of heating is not dependent on the frequency of supply ?

A. Induction heating B. Dielectric heating C. Electric resistance heating D. All of the above...

Which of the following is an advantage of heating by electricity ?

A. Quicker operation B. Higher efficiency C. Absence of flue gases D. All of the above...

In induction heating ___________ is abnormally high?

A. phase angle B. frequency C. current D. voltage...

In a domestic cake baking oven the temperature is controlled by________________?

A. voltage variation B. thermostat C. auto-transformer D. series-parallel operation...

Radiations from a black body are proportional to____________?

A. T1 B. T2 C. T3 D. T*...