Jee Main
Geometrical Optics
JEE Main 2025 (Online) 28th January Morning Shift
MCQ+4 / -12025
A thin prism $\mathrm{P}_1$ with angle $4^{\circ}$ made of glass having refractive index 1.54 , is combined with another thin prism $\mathrm{P}_2$ made of glass having refractive index 1.72 to get dispersion without deviation. The angle of the prism $\mathrm{P}_2$ in degrees is