A thin prism \({P}_{1}\) with angle \(4^\circ\) made of glass having refractive index 1.45 , is combined with another th…

A thin prism \({P}_{1}\) with angle \(4^\circ\) made of glass having refractive index 1.45 , is combined with another thin prism \({P}_{2}\) made of glass having refractive index 1.60 to get dispersion without deviation. The angle of the prism \({P}_{2}\) in degrees is:

[JEE Main 2025, 28 Jan (Shift 1)]