A paralle beam of white light falls on a convex lens. Images of blue, yellow and red light are formed on other side of the lens at a distance of 0.20m, 0.205m and 0.214m respectively. The dispersive power of the material of the lens will be

A paralle beam of white light falls on a convex lens. Images of blue,

1.	A paralle beam of white light falls on a convex lens. Images of blue, yellow and red light are formed on other side of the lens at a distance of 0.20m, 0.205m and 0.214m respectively. The dispersive power of the material of the lens will be
Answer» `619/1000` `9/200` `14/205` `5/214` ANSWER :C