Question

which symbol represents a gamma ray?
a. $alpha$
b. $\beta^{-}$
c. $gamma$
d. $\beta^{+}$

Explanation:

In nuclear physics, the symbol for a gamma - ray is $\gamma$. The symbol $\alpha$ represents an alpha - particle, $\beta^{-}$ represents a beta - minus particle (electron), and $\beta^{+}$ represents a beta - plus particle (positron).

Answer:

C. $\gamma$