AP EAMCET Medical 2017 Shift 1 Paper

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Question : 139 of 160

Marks: +1, -0

Which one of the following relationships is correct for cubic (C) and rhomboliedral (R) unit cells?

C - a ≠ b ≠ c ; α = β = γ ; R - a = b = c ; α = β = γ = 90°
C - a = b = c ; α ≠ β ≠ γ ; R - a ≠ b ≠ c ; α = β = γ = 90°
C - a ≠ b ≠ c ; α = β = γ = 90° ; R - a = b ≠ c ; α = β = 90° , γ = 120°
C - a ≠ b ≠ c ; α = β = γ = 90 ° ; R - a = b = c ; α = β = γ ≠ 90°

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