A right angle prism`(45^@-90^@-45^@)` of refractive index `mu` has a plate of refractive index `mu,(mu_1 lower than mu)` cemented to its diagonal face.The assembly is in air.A ray is incident at face AB as shown in Fig.3.15
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Calculate the angle of incidence at face AB for which the ray strikes the diagonal face at critical angle.

A right angle prism (45^@-90^@-45^@) of refractive index mu has a plate of refractive index mu,(mu_1 lower than mu) cemented to its diagonal face.The assembly is in air.A ray is incident at face AB as shown in Fig.3.15 . Assuming mu=1.352 ,calculate the angle of incidence at face AB for which the refracted ray passes throught the diagonal face undeviated.

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 rectangular glass slab ABCD of refractive index n_1 is immersed in water of refractive index n2(n1ltn2) . A ray of light is incident at the surface AB of the slab as shwon. The maximum value of the angle of incidence alpha max such that the ray comes out from the other surface CD is given by .

A transparent solid cylindrical rod has a refractive index of (2)/(sqrt3 ) .It is surrounded by air. A light ray is incident at the mid-point of one end of the rod as shown in the figure. The incident angle theta for which the light ray grazes along the wall of the rod is:

For a ray of light travelling from a denser medium of refractive index mu_1 to a rarer medium of refractive index mu_2 ,prove that (mu_2)/(mu_1) = sin C , where C is the critical angle of incidence for the media.

Light enters at an angle of incidence in a transparent rod of material of refractive index mu . The light once entered into it will not leave it through its lateral face, whatsoever be the value of angle of incidence, if

A ray is incident on the surface of glass plate of refractive index sqrt 3 . What is the value of angle of incidence, if reflected light is completely polarised?

An equilateral prism of refractive index 1.45 is surrounded by water of refractive index 1.33 .A narrow beam of light is incident normally on one face of the prism.Find the direction of the emergent ray.

A concave lens made of a material of refractive index mu_g is immersed in a medium of refractive index mu_l , greater than,A paprallel beam of light is incident on the lens. Trace the path of emerged rays

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 .