Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Solve these two questions. They are not very long. And try to write clearly and accurately!
Q1: The wave function ψk(x) of an electron in a crystal may be expressed in a Fourier series as ψk(x)=∑C(k)exp(ikx). Use this statement to prove the Bloch theorem.
Q2: Show that the wavelength associated with an electron having an energy equal to Fermi energy is given by
λF=2*sqrt(pi/(3*n))
where n seems is concentration of electrons(confirm it!).
A balloon of volume 2.7 m^3 contains argon gas at a pressure of 2.4 10^5 Pa and room temperature (20°C). What is the total internal energy of the gas?
A uniform rod of mass M and length L is sitting on a frictionless table. Describe the subsequent motion of the rod
A single constant force F = (3 i + 4j) N acts on a 3.85 kgparticle. What is the change in the potential energy
an object is placed 12.0 cm in front of the cornea. the cornea is thin ans has approximately parallel sides so that the
A 1.5 kg playground ball is moving with a velocity of 3.0 m/s directed 30 degrees below the horizontal just before it strikes a horizontal surface. evaluate the magnitude of the average resultant force on the ball
You are designing a testing machine for a golf ball manufacturer. What is the speed of the 0.050 kg golf ball just after being struck by the clubhead
In an integrated circuit, the current density in a 3.0??m?thick× 80 ??m?wide gold film is 7.9×105A/m2. How much charge flows through the film in 15 min
What is the orbital radius and speed of a synchronous satellite which orbits the earth once every 24 hours. Take G = 6.67 x 10 raise to power -11 Nm/Kg2, mass of the earth is 5.98 x 10 raise to power 24kg.
A uniform 210N ladder rests against a perfectly smooth wall, making a 40.0 degrees angle with the wall. Find the normal forces that the wall exert on the ladder
in music two notes are said to be an octave apart when one note is exactly twice the frequency of the other. suppose
the schrodinger equation of a two dimensional harmonic oscillator can be handled by separation of variables in
The new blade on my table saw has a radius of 15.0 cm. My table saw has a maximum speed of 3750 rpm. If it takes 2.50 seconds to get up to this final speed, what is the tangential velocity of the tip of the saw blade,
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd