When light is refracted, which of the following does not change ? (a) Wavelength (b) Frequency

Question

When light is refracted, which of the following does not change ? (a) Wavelength (b) Frequency

When light is refracted, which of the following does not change ?
(a) Wavelength (b) Frequency
(c) Velocity (d) Amplitude

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

(b) Frequency does not change on refraction

EXPLANATION:

When light is refracted into a medium its speed changes but the frequency remains the same because the energy associated with a photon of this light is proportional to the frequency of the light and it remains unchanged. Since the wavelength λ = c/, i.e. λ ∝ c. So the wavelength changes. Option (c) is true.