Calculate the refractive index of a liquid with respect to air applying Snell.s law (use geometric construction).

Explanation

Angle of incidence (i) `= 60^@`
Angle of refraction (r) `= 45^@`
Refractive index ` ( mu ) = ( sin i)/(sin r ) = ( sin 60^@ )/(sin 45^@ ) = ( sqrt(3))/(2) xx sqrt(2) = sqrt((3)/(2)) = 1.22`