A transparent cylindrical rod of length l = 50 cm, radius R = 10 cm and refractive index μ = √3 lies onto a horizontal plane surface. A ray of light moving perpendicular to its length is incident on the rod horizontally at a height h above the plane surface such that this ray emerges out of the rod at a height 10 cm above the plane surface. Therefore, h is
(a) 1.34 cm
(b) 1.73 cm
(c) 10.0 cm
(d) 18.66 cm
