Cathode rays are deflected in electric and magnetic fields. But they are made to pass straight in Thomson.s experiment. How do you account for this?

Explanation

To understand why cathode rays are deflected in electric and magnetic fields but travel straight in Thomson's experiment, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Understanding Cathode Rays**:
- Cathode rays are streams of electrons emitted from the cathode (negative electrode) in a vacuum tube. Since electrons carry a negative charge, we can conclude that cathode rays are negatively charged particles.

**Hint**: Remember that cathode rays consist of electrons, which are negatively charged.
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