What is the formula for calculating the speed of light in glass?
| March 28, 2021 | education
The speed of light in glass can be calculated in different ways.
Most often, they use the formula that connects the speed of light in glass with its refractive index:
n = c / u
from here
u = c / n,
where c is the speed of light in vacuum,
n is the refractive index of light in glass.
Less often used are formulas connecting the wavelength, period and frequency of light in glass:
u = λ / T = λn,
where λ is the wavelength,
n is the vibration frequency of the light wave.
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