Question

Light passes from air into a liquid. The angle of incidence is 60°. The deviation produced is 15°.



the refractive index of the liquid is

Answer 1

$refraction \: index \: = \frac{ \sin( \alpha ) }{ \sin( \beta ) }$

$r _{ga} = \frac{60}{15} = \frac{4}{1}$

refractive index is 4