What is the effect of change of medium on the wavelength of light ?

Explanation

To understand the effect of a change of medium on the wavelength of light, we can follow these steps:

### Step 1: Understand the Speed of Light in Different Mediums
The speed of light in a vacuum is denoted as \( c \) (approximately \( 3 \times 10^8 \) m/s). When light travels through a medium with a refractive index \( \mu \), its speed \( v \) is given by the formula:
\[ v = \frac{c}{\mu} \]

...