When does ray incident on a prism deviate away from the base?

Explain how a ray of light passing through a prism is deviated towards the base of the prism.

A ray of light incident at an angle theta on a refracting face of a prism emerges from the other face normally. If the angle of the prism in 5^@ and the prism is made of a material of refractive index 1.5, the angle of incidence is:

A ray of light is incident on a prism ABC of refractive index sqrt3 as shown in Fig.3.14. Find the angle of incidence for which the deviation of light ray by the prism ABC is minimum. .

A ray of light is incident on a prism ABC of refractive index sqrt3 as shown in Fig.3.14. By what angle the second prism must be rotated,so that the final ray suffers net minimum deviaion. .

How does the angle of deviation vary with the angle of incidence in case of a prism ?What is the angle fo minimum deviation?

The refracting angle of a prism is A and the refractive index of its material is cot A//2 .For a ray of light incident on the prism,find the angle of minimum deviation in terms of A.

The refractig angle of a prism is A and the refractive index of its material is mu .When a ray of light is incident on the face AB of the prism,after refraction through the prism,the ray of light just grazes along the face AC as shown in Fig.3.21. Determine the value of the angle of incidence in terms of A and mu .

Calculate the refractive index of a prism,if the angle of the prism is 60^@ and the angle of minimum deviation is 30^@ .

A ray light is incident on a 60^@ prism at the minimum deviation position.The angle of refraction at the face (i.e.incident face)of the prism is: