When a ray of sun light passes through the prism each colour of light has its own speed in the glass. The seven colours come out of the prism with different angles of deviation. Red deviates least and violet deviates maximum. Thus a prism can disperse a white light into seven colours which is called colour spectrum. For a thin prism the angle of deviation is given as 8 =(n-1) The angle of dispersion is given as 0 = 8 -0. The dispersive power of a prism is 0 mean 8 Using the above ideas give answer the following questions A prism has R.I. for violet and red = 1.523 n = 1.5145. If the angle of prism is A = 2° the dispersive power of the prism is :

When a ray of sun light passes through the prism each colour of light has its own speed in the glass. The seven colours come out of the prism with different angles of deviation. Red deviates least and violet deviates maximum. Thus a prism can disperse a white light into seven colours which is called colour spectrum. For a thin prism the angle of deviation delta =(n-1) A deviation is given. The angle of dispersion is given as theta = delta v - delta r . The dispersive power is omega = theta / delta mean Using the above ideas give answer the following questions A prism has R.I. for violet and red ” =1.523 n =1.5145 If the angle of prism is A= 2° the dispersive power of the prism is : 0.01639 1.593 0.1639 0.18

When a ray of sun light passes through the prism, each colour of light has its own speed in the glass. The seven colours come out of the prism with different angles of deviation. Red deviates least and blue deviates maximum. Thus a prism can disperse a white light into seven colours which is called colour spectrum. For a thin prism, the angle of deviation is given as delta=(n-1)A . The angle of dispersion is given as phi=delta_(v)-delta_(r) . The dispersive power of a prism is omega=(phi)/(delta_("mean"))=(phi)/(delta_(y)) Using the above ideas, give answer the following questions. A prism has R.I. for violet and red n_(v)=1.523, n_(r)=1.5145 . If the angle of prism is A=2^(@) the dispersive power of the prism is :

When a beam of white light passes through a glass prism, the colour of light beam that deviates the least is

When light passes through a prism, the colour which deviates the, least is:

When white light passes through prism, which colour of light will experience minimum deviation ?

When white light passes through prism, the angle of deviation is

When white light passes through prism, the angle of deviation is

When white light passes through prism, the angle of deviation is