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If the refraction index of amber is 1.55, what is the speed of light through amber? (The speed of light through a vacuum is 3.00 x 108 m/s)


1.94 x 108 m/s


0 m/s


4.65 x 108 m/s


5.17 x 10-9 m/s

Verified Answer :

Vroomstick

n = c/v. Refractive index in amber = Speed of light in vacuum/Speed of light in amber. Hence, 1.55 = 3 x 10^8/v. v = 1.94 x 10^8 m/s

snehashish65

a. 1.94 x 108 m/s

What is refractive Index?

Refractive index is called index of refraction, measure of the bending of a ray of light when passing from one medium into another.

It is represented by :

n = c/v

Where n is refractive index , c is speed of light and v is phase velocity of light.

Given,

Refractive index of amber is 1.55,

Speed of light through a vacuum is 3.00 x 10⁸m/s

By computing the values,

1.55 = 3 x 10⁸/v

v = 1.94 x 10⁸ m/s

Therefore,

1.94 x 10⁸ m/s is the speed of light through amber.

Learn more about Speed of light here:

https://brainly.com/question/1555553

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