Question

a ray of light passes from air into liquid. the glancing angle is 30' the deviation produced in the ray of light is 15' what is refractive index of liquid?​

Answer 1

Using snells law , sin i /sin r = n where n is refractive index of denser medium , in this case liquid . I represents incident and r represents , reflected . Sin(30) / sin (15) = 0.5/0.26 = 1.923