What is the velocity of light in water?

Answer 1

225056264 m/s

Answer 2

The velocity of light in water is about 225,000 kilometers per second, which is slower than in a vacuum (299,792 kilometers per second). This change in velocity is due to water's refractive index, which affects how light travels through the medium.

Answer 3

Water is a refractive substance (as is air) which means that as light enters it, it slows down. This means that the speed of light in water (or any other refractive substance) is less than the speed of light in a vacuum.

N.B. When people refer to the speed of light being 2.998 x 10^8 meters per second, the are in fact referring to the speed of light in a vacuum.

Answer 4

The speed of light in water depends on the temperature. Near the boiling point it is 227 million meters per second (508 million miles per hour), and near the freezing point it is 224 million meters per second (501 million miles per hour). Compare this to the speed of light in a vacuum, which is nearly 300 million meters per second (670 million miles per hour). You can see that the speed of light in water is roughly 25% slower than in a vacuum. The speed of light in air is only 0.03% slower than in a vacuum.

Answer 5

I cannot give and exact calculation, but I can explain it with matter.

Light travels best through no medium (matter), such as in outer space. In air, light slows down a bit, but still remains at a high speed. In water, light slows down to about half speed. As you get deeper into the water, the light slows down even further until it stops. With solid matter, there are three different characteristics to note. There is opaque solid, which lets no light in (e.g. rock). There is transparent solid, which lets all light through (e.g. glass). And there is translucent solid, which lets some light through (e.g. stained glass). Metal reflects light.

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A lot of background but no answer to the question! Also, glass lets NEARLY all the light through, but it does absorb some.

The speed of light in water is approx 225,000,000 m/s

Answer 6

This depends on the optical density/refractive index of the liquid. For example the speeds of light in water and oil are very different.

Answer 7

The speed of light is always the same: 300,000 kilometers per second.

Answer 8

the velocity of light in water is 3into ten to the power 6.9meters per second

Answer 9

225056264 m/s

Answer 10

1.333 m/s