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CBSE Class 9 Answered

why is it that the speed of red light is more than violet light in glass(prism)?
Asked by ashwati | 24 Feb, 2009, 03:16: PM
Expert Answer

this is because refractive index of glass for red light is less than that for violet color.

since refractive index = c / v or v = c / refractive index

therefore less the refractive index greater the speed of light.

Answered by | 26 Feb, 2009, 12:54: PM
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