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how do you calculate the speed of light in water. The index of refraction for any object is. Use these tips to learn how to calculate the refractive index in physics.
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The speed of light in water is approximately 225000 km per second. Even if the vacuum is inside a box in a rocket traveling away from earth both an astronaut in the rocket and a hypothetical observer on earth will measure the speed of light moving through that box to be exactly c. The degree that light slows down when passing through a medium is described by the index of refraction of that medium.
This vacuum speed of light c is what the statements from relativity describeWhenever light is in a vacuum its speed has that exact value no matter who measures it.
Formula to calculate wave period from wave length l and speed. The speed of light in water is approximately 225000 km per second. C dt. C frequency of the light x wavelength.
