Question icon
Grade 12Wave Optics

when a light of wavelength 400nm is incident on the surface of aglass slab making an angle of 30degree with its surface the angle of refraction 30degree find the refractive index of glass slab?

Profile image of L.Hussaina
7 Years agoGrade 12
Answers icon

1 Answer

Profile image of Eshan
7 Years ago
Dear student,

Angle of incidence=i=90^{\circ}-30^{\circ}=60^\circ
Ange of refraction=r=30^\circ
Usesin i=\mu sinr