A perfect emitter or absorber of radiant energy is a
...A perfect emitter or absorber of radiant energy is a
conductor
black body
white body
red body
Correct answer is B
Dull, black surface are good emitters or absorbers of energy
The diagram above shows the prism arrangement in a ...
The carbon-granules microphone works on the principle of change in ...
When the pressure of the gas in a discharge tube is gradually lowered. I. there is a violet glow ...
Which of the following instrument may be used to measure the relative humidity? ...
What is the least possible error encountered when taking measurement with a meter rule? ...
A nuclide represented as 7032X has a neutron-proton ratio of...