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When the light wave enters into a medium of different optical density.
- a)its speed & wavelength change
- b)its speed, frequency & wavelength change
- c)its frequency and wavelength change
- d)its speed & frequency change
Correct answer is option 'A'. Can you explain this answer?
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When the light wave enters into a medium of different optical density....
The correct answer is: its speed & wavelength change
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When the light wave enters into a medium of different optical density....
When light wave enters into a medium of different optical density
- Speed Change: When a light wave enters a medium of different optical density, its speed changes. This is due to the change in the refractive index of the medium, which affects the speed of light propagation. The speed of light in a medium is given by v = c/n, where v is the speed of light in the medium, c is the speed of light in a vacuum, and n is the refractive index of the medium. As the refractive index changes, the speed of light in the medium also changes.
- Wavelength Change: The wavelength of the light wave also changes when it enters a medium of different optical density. This is because the speed of light in the medium is different from the speed of light in a vacuum, which results in a change in the wavelength of the light wave. The relationship between wavelength and speed of light is given by the equation v = fλ, where v is the speed of light, f is the frequency of the light wave, and λ is the wavelength. As the speed changes, the wavelength also changes to maintain the frequency constant.
Therefore, when a light wave enters a medium of different optical density, its speed and wavelength change, but the frequency remains constant. This phenomenon is a result of the interaction of light with the properties of the medium it is passing through.
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When the light wave enters into a medium of different optical density.a)its speed & wavelength changeb)its speed, frequency & wavelength changec)its frequency and wavelength changed)its speed & frequency changeCorrect answer is option 'A'. Can you explain this answer?
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