Is my calculation for the speed of light through water correct?

In summary, the speed of light in water is approximately 225,000 kilometers per second, which is about 75% of the speed of light in a vacuum. This is because water is a denser medium that causes light to travel at a slower rate. The difference in speed is due to the refractive index of water, and it can be measured using various methods. Additionally, the speed of light in water changes with different temperatures, with higher temperatures resulting in a faster speed due to the decrease in water density.
  • #1
wakejosh
102
0

Homework Statement


what is the speed of light through water? (the index of refraction is 1.333)


Homework Equations


speed of light/speed of light in X = index of refraction of X


The Attempt at a Solution



3x10^8/x = 1.333

x= 2.25 x 10^8


just looking for a double check to make sure I did this right. thanks,
 
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  • #2
You did it right.
 
  • #3


Based on your calculation, it appears that you have correctly calculated the speed of light through water using the given index of refraction. However, it is always a good idea to double check your work and make sure that your calculation is consistent with known values for the speed of light through water. You can also use online resources or consult with a colleague to confirm your result. Additionally, it is important to include units in your calculation (e.g. meters per second) to ensure accuracy and clarity.
 

1. What is the speed of light in water?

The speed of light in water is approximately 225,000 kilometers per second, which is about 75% of the speed of light in a vacuum.

2. How does the speed of light in water compare to the speed of light in a vacuum?

The speed of light in water is slower than the speed of light in a vacuum because water is a denser medium that causes light to travel at a slower rate.

3. Why does the speed of light in water differ from the speed of light in a vacuum?

The difference in speed is due to the refractive index of water, which is a measure of how much the speed of light is reduced when passing through a medium.

4. Can the speed of light in water be measured?

Yes, the speed of light in water can be measured using various methods such as using a laser beam and a high-speed camera to record the light's path through the water.

5. Does the speed of light in water change with different temperatures?

Yes, the speed of light in water does change with different temperatures. As the temperature of water increases, the speed of light also increases due to the decrease in density of the water.

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