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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 17 - Refraction of Light by Plane Surfaces > A prism of a certain angle deviates the red and blue rays by 8 degree and 12 degree respectively. Another prism of the same angle deviates the red and blue rays by 10 degree and 14 degree respectively. The prisms are small angled and made of different materials. The dispersive powers of the materials of the prisms are in the ratio

A prism of a certain angle deviates the red and blue rays by 8 degree and 12 degree respectively. Another prism of the same angle deviates the red and blue rays by 10 degree and 14 degree respectively. The prisms are small angled and made of different materials. The dispersive powers of the materials of the prisms are in the ratio

A light ray is incident on a prism in minimum deviation position and suffers a deviation of 40^o . If the shaded half of the prism is removed off then the same ray will suffer a deviation of :