Calculate the probability that an energy level at 0.2eV below the Fermi level is occupied at temperature 500K.
8.C] Calculate the probability that an energy level at 0.2eV below the Fermi level is occupied at temperature 500K. Answer:
Category solved model papers
The speed of electron is measured to within an uncertainty of 2 × 104 ms−1 in one dimension. What is the minimum width required by the electron to be confined in an atom?
4.C] The speed of electron is measured to within an uncertainty of 2 × 104 ms−1 in one dimension. What is the minimum width required by the electron to be confined in…
The ratio of the population of two energy levels out of which the upper one corresponds to a metastable state is 1.059x 10-30. Find the wavelength of light emitted at 330 K.
6.C] The ratio of the population of two energy levels out of which the upper one corresponds to a metastable state is 1.059x 10-30. Find the wavelength of light emitted…
A fly wheel rotates at 200rpm and after 10 seconds it rotating at 160rpm. If the retardation is uniform determine number of revolutions made and time taken by flywheel before it .comes to rest from the speed of 200 rpm.
10 b]A fly wheel rotates at 200rpm and after 10 seconds it rotating at 160rpm. If the retardation is uniform determine number of revolutions made and time taken by flywheel…
A particle of mass 100N is acted upon by a force F = (20t2 – 40)N, where ‘t’ is time in second. At t = 0s, velocity of the particle is 5m/s and position x = 0. Find velocity and position of the particle at t = 2s.
10.C] A particle of mass 100N is acted upon by a force F = (20t2 – 40)N, where ‘t’ is time in second. At t = 0s, velocity of the…
A target is fired with an initial velocity of 180m/s at a target located 500m above the gun and at a horizontal distance of 2100m. Neglecting air resistance determine the value of the firing angle.
9 c] A target is fired with an initial velocity of 180m/s at a target located 500m above the gun and at a horizontal distance of 2100m. Neglecting air resistance…
Find the support reactions for the beam as shown in figure
8.B] Find the support reactions for the beam as shown in figure. Answer:-
A stone is released from top of the tower during the last second of its motion it covers 1/4th of the height of the tower Find the height of the tower.
9 b] A stone is released from top of the tower during the last second of its motion it covers 1/4th of the height of the tower Find the height…
Analyze the truss as shown in figure, by methods of joints.
7.B] Analyse the truss as shown in figure, by methods of joints. Answer:-
A floor truss is loaded and determine the forces in members CF EF and EG.
8 c] A floor truss is loaded as shown in fig Q 8 (c), determine the forces in members CF,EF and EG.