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Why the velocity of light in vacuum is independent of wave length ?

Why the velocity of light  in vacuum is independent of  wave length ?

Grade:12

3 Answers

India VK
42 Points
9 years ago

Speed of any wave does not depend on the wavelength. It depends only on the elastic and inertia properties of the medium.

srinu kummari
32 Points
9 years ago

In vaccum if frequency increases wavelenth decreases, if wavelenth increases frequency decreases so velacity in vaccum is independent of wavelenth

Naveen
49 Points
9 years ago

na= refractive index of air   = 1

nb=refractive index of vacume = 0

va=velocity of light in air  =3*10^8m/s

vb=velocity of light in vacume

 

we know that na/nb= vb/va

then vb = 3*10^8m/s

 

fa  =  va/lmdab  ;  fb  =  vb/lmdab

by this fa=fb&va=vb

then lmda a=lmada b

so that the velocity of light  in vacuum is independent of  wave length

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