To find the lattice constant of a simple cubic lattice given the interplanar spacing of a (002) plane, we can use the formula for interplanar spacing in a cubic lattice:
d_{hkl} = \frac{a}{\sqrt{h^2 + k^2 + l^2}}
Here, d_{hkl} is the interplanar spacing, a is the lattice constant, and h, k, l are the Miller indices of the plane.
Given:
- Interplanar spacing d_{002} = 3 \, \text{Å}
- Miller indices for the (002) plane: h = 0, k = 0, l = 2
Substitute these values into the formula:
3 = \frac{a}{\sqrt{0^2 + 0^2 + 2^2}}
Simplify the square root term:
3 = \frac{a}{\sqrt{4}} → 3 = \frac{a}{2}
Solving for a, we get:
a = 3 \times 2 = 6 \, \text{Å}
Therefore, the lattice constant for the simple cubic lattice is 6.0 Å.
Hence, the correct answer is:
6.0 Å
Important Questions from Mixed Topic (CUET PG)
- Who was the founder of Bolshevik Communist party?
- What is the key guide to statecraft in the realist tradition?
- Chronologically arrange the events in the Cold War period.
A. Berlin Wall is constructed
B. Communist China joins the UN
C. Soviet invasion of Czechoslovakia
D. Berlin Blockade
Choose the correct answer from the options given below: Morgenthau's principles of political realism are:
A. Politics is rooted in permanent and unchanging human nature which is basically self centred, self-regarding and self-interested
B. Politics is an autonomous sphere of action and cannot therefore be reduced to morals
C. International Politics is an arena of conflicting self-interests
D. The ethics of international relations is situational ethics which is very different from private morality
Choose the correct answer from the options given below:Who among the following political thinkers consider the anarchical self help system to be a compelling factor for States to maximise their relative power positions?
