For a prism of prism angle θ = 60°, the refractive indices of the left half and the right half are, respectively, n₁ and n₂ (n₂ ≥ n₁) as shown in the figure. The angle of incidence i is chosen such that the incident light rays will have minimum deviation if n₁ = n₂ = n = 1.5. For the case of unequal refractive indices, n₁ = n and n₂ = n + Δn (where Δn ≪ n), the angle of emergence e = i + Δe. Which of the following statement(s) is(are) correct?