What is the speed of light in a medium with a refractive index of 1.5?

What is the speed of light in a medium with a refractive index of 1.5?

Step 1: Understand that the speed of light in a vacuum is approximately 3 x 10^8 meters per second (m/s).
Step 2: Know that the refractive index (n) of a medium tells us how much the speed of light is reduced in that medium. In this case, n = 1.5.
Step 3: Use the formula to find the speed of light in the medium: speed = c / n, where c is the speed of light in a vacuum.
Step 4: Substitute the values into the formula: speed = 3 x 10^8 m/s / 1.5.
Step 5: Perform the division: 3 x 10^8 divided by 1.5 equals 2 x 10^8 m/s.
Step 6: Conclude that the speed of light in a medium with a refractive index of 1.5 is 2 x 10^8 m/s.

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