Question

A Ray of light is travelling from glass to air the angle of incidence is 30 degree and Angle of refraction is 60 degree what is the refractive index of glass​ with respect to air

Answer 1

According to Snell's law

$na \: sin \: (i) \: = ng \: \sin(r) \\ \frac{ng}{na} = \frac{ \sin(30) }{ \sin(60) } \\ \frac{ng}{na} = \frac{1}{ \sqrt{3} }$

I hope this helps ( ╹▽╹ )

Answer 2

hope u all understand well