Physics for IGCSE & O level - Rays And Waves (Section 1 - No. 22)
What happens to the light's wavelength when the refractive index of a medium is higher?
The wavelength increases.
The wavelength decreases.
The wavelength remains the same.
The wavelength is unrelated to the refractive index.
Explanation
A higher refractive index results in a shorter wavelength
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