Dear Experts, please explain this question's answer so that I can get the actual concept.

Dear Student,
As red has the highest wavelength, it will bend the least whereas violet bends the most, because it has the lowest wavelength and hence the angle of refraction of red light will be less than the angle of refraction of violet light. 
So,r<v
Option D is correct
Regards  

  • 1
R=V , since angle of incidence nd that of reflection ar equal, i.e thita?= thita? i.e their lengths are also equal??
  • -2
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