PhysicsEasy105×since 2002Q7127The refractive index of a prism with apex angle AAA is cotA/2\cot A / 2cotA/2. The angle of minimum deviation is :Aδm=180∘−3 A\delta_m=180^{\circ}-3 \mathrm{~A}δm=180∘−3 ABδm=180∘−4A\delta_m=180^{\circ}-4 Aδm=180∘−4ACδm=180∘−2A\delta_m=180^{\circ}-2 Aδm=180∘−2ADδm=180∘−A\delta_m=180^{\circ}-Aδm=180∘−ACheck answerSkip