What is the relation between wavelength and momentum of moving particles ?

What is relation between

Two particle are initially moving with angular momentum vec(L)_(1) and vec(L)_(2) in a region of space with no external torque. A constant external torque vec( tau) then acts on one particle, but not on the other particle, for a time interval Delta t . What is the change in the total angular momentum of the two particles ?

Derive the relation between the wavelength (lambda) of the de broglie wave and kinetic energy (E ) of a moving particle

If the maximum particle velocity is 4 times of the wave velocity then relation between wavelength and amplitude is

If a moving particle have linear momentum bar P and position vector bar r then choose the correct relation between bar r,bar p and angular momentum bar L of particle about the origin.

(i) State how de - Broglie wavelength (lambda) of moving particles varies with their linear momentum (p). (ii) State any one phenomenon in which moving particles exhibit wave nature.

Two particles of equal masses moving with same momentum collide perfectly inelastically. After the collision the combined mass moves with half of the speed of the individual masses. The angle between the initial momenta of individual particle is

Three particles are moving as shown in the figure, Calculate the angular momentum of the third particle C , so that the angular momentum of system about point O becomes zero.

The relation between wavelength (lamda) and angular wave number (k) of a wave is

A test particle is moving in a circular orbit in the gravitational field produced by a mass density rho(r)=K/(r^(2)) . Indentify the correct relation between the radius R of the particle's orbit and its period T :