Q6 of 69 Page 363

Should the energy of a photon be called its kinetic energy or its internal energy?

In Physics, the Energy-Momentum relation of a particle is given by


=Energy; =Momentum; =Velocity of light; =rest mass of particle. For Photon, =0 and thus. Since momentum is associated with the energy of photon, we call the energy of photon as its kinetic energy and not its internal energy.


More from this chapter

All 69 →
4

Can a photon be deflected by an electric field? By a magnetic field?

 5

A hot body is placed in a closed room maintained at a lower temperature. Is the number of photons in the room increasing?

 7

In an experiment on photoelectric effect, a photon is incident on an electron from one direction and the photoelectron is emitted almost in the opposite direction. Does this violate conservation of momentum?

 8

It is found that yellow light does not eject photoelectrons from a metal. Is it advisable to try with orange light? With green light?