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2D representation of the diamond unit cell
In a 2D projection of the diamond unit cell, the base plane of the unit cell ABCD is shown by a square and the atoms in the base plane are shown by their z co-ordinates. The face-centered atoms of all 4 side faces are projected down and shown by numbers showing their height from the base in terms of the lattice constant a. Figure gives how the 3D unit cell is depicted in an equivalent 2D representation. All atoms whose z-co-ordinates vary by ¼ are nearest neighbours included in the tetrahedral bond. Thus the nearest neighbour distance would be that between say A and atom at J.
Propagation of an Electromagnetic Wave Electromagnetic waves are waves that can travel by the vacuum of outer space. Mechanical waves, not like electromagnetic waves, need the
Boat A is travelling at 4.6 m/s. Boat B is moving away from boat A at 9.2 m/s, as shown in the figure below. The captain of boat B blows an air horn with a frequency of 550 Hz
When are intermolecular forces the strongest? Intermolecular forces (dipole-dipole, dispersion and hydrogen bonds). These forces are weaker than chemical (covalent) bonds. Thus
Event horizon: The radius which a spherical mass has to be compressed to transform it in a black hole, or the radius at which space and time switch responsibilities. Once insi
how to perform experiment of deflection magnetometer,its concepts
2 liters of water at 80 celsius is found into a plastic bucket containing 10 liters of water at 20 celsius what is the final temp of the mixture. specific capacity of water is 1 c
(a) Using the thermochemical tables provided, calculate the standard molar enthalpy of combustion at 298 K for the following hydrocarbon: C C 2 H 4 (g ) (ethene) (b) If
Define the Process - Liquid-Solid-Liquid? A small quantity of water of mass m = 50g in a container at temperature T = 273 K is placed inside a vacuum chamber which is expatria
Define the graded index multimode fibers intermodal dispersion specifically. In graded index fibers, the index of the core material slowly raises and turns into maximise at the
#questi1. A sound with a frequency of 261.6 Hz travels through water at a speed of 1435 m/s. What is the wavelength of the wave? a. 1.83 x 10 -1 m b. 3.753 x 10 5 m c. 5.486 m
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