1)can we find the mass of a photon by the definition p=mv?2)is it always true that for two sources of equal intensity,the no. of photons emitted in a given time are equal?3)what is the speed of a photon with respect to another photon if (a)the 2 photons are goin in the same direction and (b)they are goin in the opposite direction?4)can a photon be deflected by an electric field?by a magnetic field?

Amit Saxena , 10 Years ago

Grade upto college level