When a ray of light is incident normally on one refracting surface of an equilateral prism (Refractive index of the material of the prism `=1.5`
A. Emerging ray is deviated by `30^(@)`
B. Emerging ray is deviated by `45^(@)`
C. Emerging ray just grazes the second refracting surface
D. The ray undergoes total internal reflection at the second refracting surface
