Quantum Mechanics Answers

Is symmetric or asymmetric wavefunction for fermions?

What is shape of phase space trajectory of relativistic particle under gravity.

Explain spin of boson and fermion particles.

A ladder rests in limiting equilibrium against a rough vertical wall and with it foot on rough horizontal ground,the coefficient of friction at both points of contact been 0.5.the ladder is uniform and weights 300N.find the angle which the angle of the ladder with horizontal ground?

Explain multiplicity in spin.

A photon with wavelength 0.1385 nm scatters from an electron that is initially at rest. What must be the angle between the direction of propagation of the incident and scattered photons if the speed of the electron immediately after the collision is 8.90×10^6 m/s?

Write down Cv in partition function form.

A small body starts falling onto the Sun from a distance equal to the radius of the Earth orbit. The initial velocity of the body is equal to zero in the heliocentric reference frame. Making use of Kepler s laws, find how long the body will be falling.

A cannon of mass M starts sliding freely down a smooth inclined plane at an angle α to the horizontal. After the cannon covered the distance l, a shot was fired, the shell leaving the cannon in the horizontal direction with a momentum p. As a consequence, the cannon stopped. Assuming the mass of the shell to be negligible, as compared to that of the cannon, determine the duration of the shot.