Question

In a photon-particle collision (like photon-electron), the photons -

• A. may be created.
• B. may be absorbed.
• C. always remain conserved.
• D. Both options $\left(A\right)$ and $\left(B\right)$

Answer 1

The correct option is D Both options $\left(A\right)$ and $\left(B\right)$

In photon-particle collision (like photon-electron), the total energy and total momentum are conserved, but the number of photons may increase or decrease.

Hence, option $\left(D\right)$ is the correct answer.