Opposite Rays

A Ray

An isosceles prism of angle 120degree has a refractive index 1.44. Two parallel monochromatic rays enter the prism parallel to each other in air as shown. The rays emerge from the opposite faces

A parallel beam of light is incident on a prism as shown in figure. Such that the rays get reflected from opposite faces. The angle of deviation delta between reflected rays from faces AB and AC is-

A ray of light is sent along the line x-6y = 8 After refracting across the line x + y = 1 it enters the opposite side after turning by 15^(@) away from the line x+ y =1 .Find the equation of the line along which the refracted ray travels .

In an experiment with a rectangular glass slab, a student observed that a ray of light incident at an angle of 55^(@) with the normal on one face of the slab, after refraction struck the opposite face of the slab before emerging out into air making an angle of 40^(@) with the normal. Draw a labelled diagram to show the path of this ray.

To construct a triangle similar to a given Delta ABC with its sides (8)/(5) of the corresponding sides of Delta ABC draw a ray BX such that angleCBX is an acute angle and X is on the opposite side of A with respect of BC. The minimum number of points to be located at equal distances on the ray BX is

To construct a triangle similar to a given DeltaABC with its sides (3)/(7) of the corresponding sides of DeltaABC , first draw a ray BX such that angleCBX is an acute angle and X lies on the opposite side of A with respect to BC. The minimum number of points to be located at equal distances on ray BX is

A ray of light is sent along the line 2x-3y=5. After refracting across the line x+y=1 it enters the opposite side after torning by 15^(@) away from the line x+y=1 . Find the equation of the line along which the refracted ray travels.