The refractive index of a transparent material is 1.84 and that of glass is 1.52. By how much amount the light travels faster in a window glass than in the material ?

Explanation

To determine how much faster light travels in window glass compared to a transparent material, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the refractive indices**:
- Refractive index of the transparent material (\( \mu_m \)) = 1.84
- Refractive index of glass (\( \mu_g \)) = 1.52

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