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With neat diagram of unit cell , explain the structure of HCP crystal and calculate the no. of ions per unit cell, co ordination no., lattice constant and packing factor of the structure.
Concept: Study of characteristics of unit cell of Diamond, ZnS, NaCl and HCP;
Define ligancy and critical radius ratio. Calculate critical radius radio for ligancy 6.
Concept: Study of characteristics of unit cell of Diamond, ZnS, NaCl and HCP;
Explain with Diagram Hcp Unit Cell Based on Lattice Parameters.
Concept: Study of characteristics of unit cell of Diamond, ZnS, NaCl and HCP;
Derive Bragg's condition for X-ray diffraction. Monochromatic X rays are
incident on a crystal. If the first order rejection is observed at an angle of 3.4•, at
what angle would second order reflection expected.
Concept: X-ray Diffraction
A quartz crystal of thickness 1 mm is vibrating at resonance. Calculate its fundamental frequency. (Assume that for quartz, Y= 7.9x 1010 N/m2 and p = 2.650 gm/cc.
Concept: Study of characteristics of unit cell of Diamond, ZnS, NaCl and HCP;
Define Ligancy. Find the value of critical radius ratio for Ligancy 3.
Concept: Study of characteristics of unit cell of Diamond, ZnS, NaCl and HCP;
Explain Point defects in crystals.
Concept: Introduction to Crystallography
Write schrodinger’s time dependentand time independent wave equations of matter waves in one dimensional and state physical significance of these Equations.
Concept: Schrodinger’S Time Dependent Wave Equation
Describe with the necessary theory the davisson and german establishing wave nature of electrons. Calculate the de-broglie wavelength of an alpha particle accelerating through a potential difference of 200 volts given :- mass of alpha
particle = 6.68×10-27kg.
Concept: De Broglie Wavelength
What do you mean by group and phase velocity? Show that the de-Broglie group velocity associated with the wave packet is equal to the velocity of the particle.
Concept: De Broglie Wavelength
An electron is confined in a box of dimension 1A°. calculate minimum uncertainty in its velocity.
Concept: Applications of Uncertainty Principle
Derive Schrodinger time dependent wave equation for matter waves.
Concept: Schrodinger’S Time Dependent Wave Equation
What is the wavelength of a beam of neutron having:
⦁ An energy of 0.025 eV?
⦁ An electron and photon each have wavelength of 2A°. what are their momentum and energy ? mn = 1.676×10 -27 kg, h = 6.625×10 -34 J-sec.
Concept: De Broglie Wavelength
Arrive at Heisenberg’s uncertainty principle with single slit electron diffraction. An electron has a speed of 300n/sec with uncertainty of 0.01 %. Find the accuracy in its position.
Concept: Heisenberg’S Uncertainty Principle
With Heisenberg’s uncertainty principle prove that electron cannot survive in nucleus. An electron has a speed of 300m/sec. with uncertainty of 0.01% . find the accuracy in its position.
Concept: Heisenberg’S Uncertainty Principle
State properties of matter waves.
Concept: Properties of Matter Waves
State Heisenberg's Uncertainty Principle. Show that electron doesn'texist in
the nucleus.Find the accuracy in the position of an electron moving with speed 350
m/sec with uncertainty of 0.01%.
Concept: Introduction to Quantum Mechanics
