Photoelectric effect
The phenomenon of emission of electrons by certain metal , when it is exposed to radiations of certain frequencies is called as photoelectric effect and emitted electrons is called as photoelectrons

What is Huygens' Wave Theory, what are its assumptions let us see tha…
Those students who recently appeared for their MS exam from RGUHS , Banga…
In 1792 , Pierre Prevost put forward a theory of heat exchange . Accord…