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5 August, 13:45

Suppose light travels 1.5 times faster in a vacuum than it does in glass. What

is the index of refraction for glass? Express your answer as a decimal.

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  1. 5 August, 14:19
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    index of refraction for glass = 1.5

    Explanation:

    Refractive index or index of refraction of a surface is a dimensionless amount that defines how quickly the light passes through the object. It defines that how the rays of light pass through a particular medium. In simple word, It is the measure of bending of rays of light when light passing through one medium to another medium.

    By mathematical definition, It is the ratio of speed of light in vacuum to the speed of light in a particular medium. In our case, It is the ratio of speed of light in vacuum to the speed of light in glass.

    If the refractive index of a substance is higher, the object will show more "scatter" or "fire."

    Consider

    speed of light in glass = X

    speed of light in vacuum = 1.5 X

    refractive index = n = ?

    By definition, n = (speed of light in vacuum) / (speed of light in glass)

    n = (1.5 X) / (X)

    n = 1.5
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