If the refractive angles of two prisms made of crown glass are `10^(@)` and `20^(@)` respectively, then the ratio of their colour deviation powers will be

The refractive angles of two crown glass prisms are 10^(@) and 20^(@) respectively . What is the ratio of their dispersive the material of the same prism then

A glass prism deviates the red and blue colour rays through 8^(@) and 10^(@) , respectively. A second prism of equal refracting angle deviates them through 10^(@) and 12^(@) respectively. Calculate the ratio of their dispersive powers.

A flint glass prism and a crown glass prism are to be combined in such a way that the deviation of the mean ray is zero. The refractive index of flint and crown glasses for the mean ray are 1.620 and 1.518 respectively. If the refracting angle of the flint prism is 6.0^@ , what would be the refracting angle of the crown prism ?

A flint glass prism and a crown glass prism are to be combined in such a way that the deviation of the mean ray is zero. The refractive index of flint and crown glasses for the mean ray are 1.620 and 1.518 respectively. If the refracting angle of the flint prism is 6.0^@ , what would be the refracting angle of the crown prism ?

A flint glass prism and a crown glass prism are to be combined in such a way that the deviation of the mean ray is zero. The refractive index of flint and crown glasses for the mean ray are 1.6 and 1.9 respectively. If the refracting angle of the flint prism is 6^@ , what would be the refracting angle of crown prism?

Which of the two prisms, A made of crown glass and B made of flint glass, deviates a ray of light more ?

It is given that the aispersive powers of crown and flint glasses are 0.06 and 0.10 respectively. Also the refractive indices for yellow light for these glasses are 1.517 and 1.621, respectively. We have to form an achromatic combination of prism of crown and flint glasses which can produce a deviation of 1^(@) in the yellow ray. Evaluate the refracting angles of the two prisms needed.

It is given that the disispersive powers of crown and flint glasses are 0.06 and 0.10 respectively. Also the refractive indices for yellow light for these glasses are 1.517 and 1.621, respectively. We have to form an achromatic combination of prism of crown and flint glasses which can produce a deviation of 1^(@) in the yellow ray. Evaluate the refracting angles of the two prisms needed.

The respective angles of the flint and crown glass prisms are A' and A. They are to be used for dispersion without deviation, then the ratio of their angles A'//A will be