Find out the angle 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 .

Refractive index of a prism of angle 8^(@) is 1.55. Find the angle of deviation of a monochromatic light passing through it.

White light is passed through a prism of angle 10^(@) If the rafractive index for red and violet colour are 1.641 and 1.659 .Then find out- ( a) Angle of deviation for violet and red ( b) Angular dispersion ( c ) Dispersive power .

Find out the quartile deviation and coefficient of quartile deviation of the following series:

Find out the mean deviation and its coefficient using median of the following data:

Find the angle of minimum deviation for an equilateral prism made of a material of refractive index 1.732. What is the angle of incidence for this deviation ?

Find the angle of minimum deviation for an equilateral prism made of a material of refractive index 1-732. What is the angle of incidence for this deviation ?