A ray of light of frequency 500 terahertz is passed through a liquid. If the wavelength of light measured inside the liquid is 450 nm, calculate the refractive index of the liquid.

Explanation

To find the refractive index of the liquid, we can follow these steps:

### Step 1: Convert the frequency to standard units
The frequency of light is given as 500 terahertz (THz). We need to convert this to hertz (Hz):
\[ \text{Frequency} (f) = 500 \, \text{THz} = 500 \times 10^{12} \, \text{Hz} \]

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