Question

For the same angle of incidence in medium A,B,C the angles of refraction are 40degree 50degree 60 degree respectively,In which medium will the refractive index be minimum? Give reason in support your answer

Answer 1

$\frac{sin \: i}{sin \: r} \: = refractive \: index$
for same angle of incidence..... refractive index is inversely proportional to angle of refraction
so, 60degrees will have minimum refractive index