question_answer

Following process is knows as\[hv\xrightarrow[{}]{{}}{{e}^{+}}+{{e}^{-}}\]

A) Pair production

B) Photoelectric effect

C) Compton effect               

D) Zeeman effect

Correct Answer: A

Solution :

Pair production refers to the creation of an elementary particle and its antiparticle usually from a photon (or another neutral boson). This is allowed, provided there is enough energy available to create the pair.