Question

Why can gamma rays pass through or penetrate solids?

A. Gamma rays have low mass.
B. Gamma rays have high mass.
C. Gamma rays have low velocity.
D. Gamma rays have high velocity.

Answer 1

Gamma rays have a high velocity

Answer 2

The answer is A. They actually have negligible mass because gamma rays are photons with very high frequency. Gamma rays are the strongest in the electromagnetic spectrum meaning they have the highest energy. This way, they also have very low frequency hence have lower chances of interacting with matter thence more easily able to penetrate solids.