Physics - Geometrical Optics Question with Solution | TestHub

The glass prisms $P_1$ and $P_2$ are to be combined together to produce dispersion without deviation. The angles of the prisms $P_1$ and $P_2$ are selected as $4^{\circ }$ and $3^{\circ }$ respectively. If the refractive index of prism $P_1$ is $1.54,$ then that of $P_2$ will be