Two prisms A and B are in contact with each other have angular dispersions of 2^(0) and 4^(0) respectively.The dispersive power of A is 0.002 .If the combination produces dispersion without deviation the dispersive power 'B' is

Two prisms A and B are in contact with each other have angular dispersions of 2^(@) and 4^(@) respectively. The dispersive power of A is 0.002. If the combination produces dispersion without deviation, the dispersive power of B is

Two prisms A and B are in contact with each other have angular dispersions of 2^(@) and 4^(@) respectively. The dispersive power of A is 0.002. If the combination produces dispersion without deviation, the dispersive power of B is

Define dispersive power of a prism.

The net angular dispersion without deviation is equal to

The net angular dispersion without deviation is equal to

Two prisms A and B is contact with each other The dispersive power of A nd B is 0.04 and 0.03 respectively.The angular dispersion produced by 'A' is 8 .The angular dispersion produced by the combination if the combination does not produces a net deviation is

Can dispersive power of prism be negative?