Q125 · CSIR NET Chemistry, December 2015
Paper: CSIR NET December 2015 · Subject: Physical Chemistry · Chapter: Solid State Chemistry · Topic: Crystal Systems Lattices · Marks: 2 · Difficulty: Medium
For a simple cubic crystal lattice, the angle between the [2 0 1] plane and the xy plane is
(a)less than 30°
(b)between 30° and 45°
(c)between 45° and 60°
(d)greater than 60°
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
cos θ = 1/√5, θ ≈ 63° (d).
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