Question

Find the angle of refraction of a ray of light that enters diamond from water at an angle of 21.2 degrees to the normal

b) draw a diagram that demonstrates your findings


Can anybody please help fast

Answer 1

Refractive index for diamond wrt air = 2.42. Refractive index of water wrt air = 1.33. Refractive index of diamond wrt water = Refractive index of diamond wrt air*Refractive index of air wrt water = 2.42*(1/1.33) = 1.82. Critical angle for light passing from diamond into water = arcsin (1/1.82) = 33.33 degrees.