Question

The speed of light in plastic is 2.0 x 108 m/s. Calculate the index of refraction for
plastic.

Answer 1

Answer:

n=c/v.

1.5=3×10^8/v

v=3×10^8/1.5

v=2×10^8 m/s

Hope this helps :)

Answer 2

The index of refraction for plastic, when speed of light in plastic is 1.5.

How do we calculate refraction index?

Refraction index of any substance will be calculated by using the below equation:

n = c/v, where

c = speed of light in vaccum = 3×10⁸ m/s

v = speed of light in plastic = 2×10⁸ m/sec

On putting values in the above equation, we get

n = 3×10⁸ / 2×10⁸ = 1.5

Hence the refractive index of plastic is 1.5.

To know more about refractive index, visit the below link:
https://brainly.com/question/83184

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