The refractive index of glass with respect to water is `(9)/(8)`. If the velocity of wavelength of light in glass are `2 xx 10^(8) m//s` and 4000 Å respectively, find the velocity and wavelength of light in water.

Explanation

To solve the problem, we need to find the velocity and wavelength of light in water given the refractive index of glass with respect to water, the velocity of light in glass, and the wavelength of light in glass.

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Refractive index of glass with respect to water: \( \mu_{g/w} = \frac{9}{8} \)
- Velocity of light in glass: \( V_g = 2 \times 10^8 \, \text{m/s} \)
- Wavelength of light in glass: \( \lambda_g = 4000 \, \text{Å} \)
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