MCQ
Cathode rays have
- AMass only
- BCharge only
- CNo mass and charge
- ✓Mass and charge both
✓
Answer
Correct option: D.
Mass and charge both
d
Cathode rays have mass and charge both.
Cathode rays have mass and charge both.
Cathode rays are stream of electrons that are negatively charged particles. Cathode rays travel in straight lines from the cathode. The ratio of $e / m$ for a cathode ray is fixed at $1.758820 \times 10^{11} \,C / kg$. It is equal to the ratio of $e / m$ for an electron.
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