Let the x - z plane be the boundary between two transparent media. Medium 1 in z ≥ 0 has refractive index of √2 and medium 2 with z < 0 has a refractive index of √3. A ray of light in medium 1 given by the vector A = 6√3i + 8√3j - 10k in incident on the plane of separation. The angle of refraction in medium 2 is

- 75°
- 60°
- 45°
- 30°

**Answer**

μ_{1} sinθ_{1} = μ_{2} sinθ_{2}

cosθ_{1} = 1/2

θ_{1} = 60°

√2 sin60° = √3 sinθ_{2}

√(2 x 3)/2 = √3 sinθ_{2}

sinθ_{2} = 1/√2

θ_{2} = 45°

**The correct option is C.**