Angle Of Deviation

For reflection throught small angled prism ,the angled of deviation:

(a) If the refracting angle of a prism is 60^@ and the minimum deviation is 30^@ , then find the angle of incidence. (b) A ray of light passes through an equilateral prism such that the angle of emergence is equal to the angle of incidence and each is equal to 3//4^(th) of the angle of prism. Find the angle of deviation. (c) The refracting of a prism is A and the refractive index of the material of the prism is cotA//2 . Find the angle of deviation. (d) The angle of a prism is 60^@ . What is the angle of incidence for minimum deviation? The refractive index of the material of the prism is sqrt2 .

A ray of light travels from a medium of refractive index mu to air. Its angle of incidence in the medium is i and its angle of deviation is delta . (a) What is the angle of deviation for i lt C and i gt C , where Ci s the critical angle. (b) Plot a curve between angle of deviation delta versus angle of incidence i .

For prisms with bigger refracting angles, the deviation is calculated from the relation……….. .

A prism of angle 60^@ deviates a ray of light through 32^@ for two angles of incidence which differ by 12^@ . The angles of incidence are

True/False Type Questions Q A large-angle prism deviates a light ray more.

A 60^@ prism has a refractive index of 1.5 . Calculate (a) the angle of incidence for minimum deviation (b) angle of minimum deviation ( c) the angle of emergence of light at maximum deviation (d) angle of maximum deviation.