Light has wavelength 600 nm in a vacuum.It passes into glass,which has an index of refraction of 1.5.What is the frequency of the light inside the glass? (c = 3.0 × 10⁸ m/s)

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Quizplus · Accepted Answer

The frequency of light does not change when it passes from one medium to another. The frequency $f$ can be calculated using the formula $f = \frac{c}{\lambda}$, where $c$ is the speed of light in vacuum and $\lambda$ is the wavelength in vacuum. Given $c = 3.0 \times 10^{8} \, \text{m/s}$ and $\lambda = 600 \, \text{nm} = 600 \times 10^{-9} \, \text{m}$, $f = \frac{3.0 \times 10^{8}}{600 \times 10^{-9}} = 5.0 \times 10^{14} \, \text{Hz}$.

Light Has Wavelength 600 Nm in a Vacuum