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Speed of light in water = speed of light in vacuum/refractive index of water

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11y ago

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How you calculate the speed of light in water?

Assuming the speed of light in air is already known (it is close to the speed of light in a vacuum), you might check how the light refracts when it changes from air to water (at what angle), and then use Snell's Law.


Is it possible to travel at the speed of light in water?

No, it is not possible to travel at the speed of light in water. Light travels at a slower speed in water compared to its speed in a vacuum, which is about 299,792 kilometers per second. The speed of light in water is approximately 225,000 kilometers per second.


What percentage of the speed of light in vacuum is the speed of light in water?

When light with wavelength of 589 nanometers moves through water at the temperature of 20° C, its speed is 75% of the speed of light in vacuum.


What is the formula to calculate ship speed from RPM of an marine engine?

To calculate ship speed from the RPM of a marine engine, you can use the formula: [ \text{Ship Speed (knots)} = \frac{\text{RPM} \times \text{Propeller Diameter (in feet)} \times \text{Propeller Pitch (in feet)}}{60 \times 6076} ] Here, the propeller diameter and pitch are crucial, and the constants convert the units appropriately. The formula highlights the relationship between engine speed and the resultant speed of the vessel through water.


Does light speed up as it travels through water?

No, light does not speed up in water, it slows down.


Is the speed of light in water should be more than the speed of light in a vacuum?

No. Light slows down whenever it passes through water. Nothing is faster than the speed of light in a vaccum.


What is the speed of light in water given that the water has a refreactive index of 1.333?

Use the relation:speed in a medium = speed of light in a vacuum / refractive indexi.e. v=c/nHencev = 300000000/1.333 = 225060000 m/s


How does the speed of light change when it enters the water?

That would depend what it enters from. If the light is transitioning from air to water,its speed decreases. If it's going from jello to water, its speed increases.


Should the speed of light in water be faster that the speed of light in a vacuum?

No, it shouldn't. And it isn't.


What is the difference in the speed of light in air, water, and glass?

The speed of light is fastest in air, slower in water, and slowest in glass.


Is the speed of light greater or lesser in air than in water?

The speed is the same. Light travels at a finite speed.


What is the formula to calculate the volume of irregular object?

water displacement