When light of wavelength `lambda_(0)` in vacuum travels through same thickness ‘t’ in glass and water, the difference in the number of waves is. (Refractive indices ofglass and water are `mu_(g)` and `mu_(w)` respectively.)

Explanation

To find the difference in the number of waves when light of wavelength \( \lambda_0 \) in vacuum travels through the same thickness \( t \) in glass and water, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Wavelength in Different Media**:
- The wavelength of light in vacuum is \( \lambda_0 \).
- When light enters a medium with refractive index \( \mu \), its wavelength changes according to the formula:
\[
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