A thin prism P₁ with angle 4° made of glass having refractive index 1.54, is combined with another thin prism P₂ made of glass having refractive index 1.72 to get dispersion without deviation. The angle of the prism P₂ in degrees is

Optics: JEE Main 2025 Physics question

JEE Main 2025 · 28 Jan, Morning shift · Q42

JEE Main 202528 Jan, Morning shiftPhysicsMediumOptics190× since 2002

A thin prism

P_1

with angle

4^\circ

made of glass having refractive index 1.54, is combined with another thin prism

P_2

made of glass having refractive index 1.72 to get dispersion without deviation. The angle of the prism

P_2

in degrees is