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UkoKoshka [18]
2 years ago
9

Mỗi giây có 2,1.1018 ion+

Physics
1 answer:
Alenkasestr [34]2 years ago
4 0
A I seen it on the quiz
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When light travels from a medium it moves faster in (such as air) to a medium it moves slower in (such as glass) its velocity de
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Explanation:

Light travels at different speed in different mediums.

Refractive index is equal to velocity of the light 'c' in empty space divided by the velocity 'v' in the substance.

Or ,

n = c/v.

<u>The frequency of the light does not change but the wavelength of the light changes with change in the speed.</u>

c = frequency × Wavelength

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The formula can be written as:

n = λ / λn.

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λn is the wavelength in the medium

λ is the wavelength in vacuum

<u>When the light travels to glass, it speed slows down and also the wavelength decreases as both are directly proportional. There will be no effect on frequency.</u>

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