Question:
A unit cell with edge length $ a\ne b\ne c $ and axial angles $ \alpha =\beta =\gamma =90^{\circ} $ is called
A unit cell with edge length $ a\ne b\ne c $ and axial angles $ \alpha =\beta =\gamma =90^{\circ} $ is called
Updated On: Apr 29, 2024
- cubic
- tetragonal
- orthorhombic
- hexagonal
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The Correct Option is C
Solution and Explanation
A unit cell with edge length $a \neq b \neq c$ and axial angles $\alpha=\beta=\gamma=90^{\circ}$ is called ortho rhombic.
E.g. rhombic sulphur, $KNO _{3}$ and $BaSO _{4}$.
E.g. rhombic sulphur, $KNO _{3}$ and $BaSO _{4}$.
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Concepts Used:
Solid State
Solids are substances that are featured by a definite shape, volume, and high density. In the solid-state, the composed particles are arranged in several manners. Solid-state, in simple terms, means "no moving parts." Thus solid-state electronic devices are the ones inclusive of solid components that don’t change their position. Solid is a state of matter where the composed particles are arranged close to each other. The composed particles can be either atoms, molecules, or ions.
Types of Solids:
Based on the nature of the order that is present in the arrangement of their constituent particles solids can be divided into two types;
- Amorphous solids behave the same as super cool liquids due to the arrangement of constituent particles in short-range order. They are isotropic and have a broad melting point (range is about greater than 5°C).
- Crystalline solids have a fixed shape and the constituent particles are arranged in a long-range order.