An isosceles prism of angle 120^(@) has ...

An isosceles prism of angle `120^(@)` has a refractive index of 1.44. Two parallel monochromatic rays enter the prism paralled to each other in air as shown. The rays emerging from the opposite faces

are parallel to each other.

are diverging.

make an angle `2 sin^-1 (0.72) with each other.

make an angle `2[sin^-1 (0.72)- 30^@]`with each other.

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