What happens when a beam of light is passed through `As_2S_3` sol?

Explanation

To answer the question, "What happens when a beam of light is passed through `As_2S_3` sol?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding `As_2S_3` Sol**:
- `As_2S_3` (arsenic trisulfide) is a colloidal solution. In a colloidal solution, solid particles are dispersed in a liquid medium.

2. **Criteria for Light Scattering**:
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