When a stream of electrons collides with a stream of photons in this collision which of the following is not conserved ?

Options

A. Linear momentum
B. Total energy
C. No. of photons
D. No. of electrons

Answer

C

Explanation

In a photon particle collision (such as photon electron), the total energy and total momentum are conserved in a collision. The photon may be absorbed or a new photon may be created.