Question

For orthorhombic system axial ratios are a ≠ b ≠ c and the axial angles are

(a) α = β = γ ≠ 90°

(b) α = β = γ = 90°

(c) α = γ = 90°, β ≠ 90°

(d) α ≠ β ≠ γ ≠ 90°

Answer 1

Correct option (b) α = β = γ = 90°

Explanation :

For orthorhombic system α = β = γ = 90°