The process by which a metal, heated to high temperature,...
The process by which a metal, heated to high temperature, gives off electrons from its surface is known as
photoelectric emission
thermionic emission
radioactive emission
Held emission
secondary emission
Correct answer is B
No explanation has been provided for this answer.
Which of the following colours of surfaces will radiate heat energy best? ...
An electron of mass 9.1x 1031 kg is travelling at a speed of 2.0 x 106ms−1. ...
Two capacitance of 6μF and 8μF are connected in series. What additional capacitance must...
The wave phenomenon demonstrated in the diagram above is? ...
Which of the following processes is not a surface phenomenon? ...
Which of the following radiations has it's frequency lower than that of infrared radiation? ...