The wavelength of light in vacuum is `lambda_(0)` . When it travels normally through glass of thickness 't'. Then find the number of waves of light in ‘t’ thickness of glass (Refractive index of glass is `mu`)

Explanation

To solve the problem of finding the number of waves of light in a thickness 't' of glass with a refractive index 'μ', we can follow these steps:

### Step 1: Understand the change in wavelength
When light travels from a vacuum (or air) into a medium like glass, its wavelength changes. The original wavelength in vacuum is denoted as \( \lambda_0 \). In the glass, the wavelength \( \lambda_g \) can be expressed as:
\[ \lambda_g = \frac{\lambda_0}{\mu} \]
where \( \mu \) is the refractive index of the glass.
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