Speed of light in water = speed of light in vacuum/refractive index of 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.
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.
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.
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.
No, light does not speed up in water, it slows down.
No. Light slows down whenever it passes through water. Nothing is faster than the speed of light in a vaccum.
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
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.
No, it shouldn't. And it isn't.
The speed of light is fastest in air, slower in water, and slowest in glass.
The speed is the same. Light travels at a finite speed.
water displacement