An unknown particle is caused to move between two electrically charged plates, as illustrated in Figure 2.8. Its path is deflected by a smaller magnitude in the opposite direction from that of a beta particle. What can you conclude about the charge and mass of this unknown particle?
Figure 2.8

Transcribed Image Text:

s rays are negatively charged Lead block y rays carry no charge a rays are positively charged Electrically charged plates Photographic plate Radioactive substance