An electron revolves around a nucleus of an atom in a circular orbit of radius `4A^0` with a speed of `5xx10^6 m//s`. What is the angular momentum of the electron ?

The electron in the first orbit of hydrogen atom revolves round the nucleus in a circular orbit of radius 0.5 overset@A with a speed 2.18xx10^(6) m/s . What is the centripetal force acting on the electron ? (Mass of electron = 9.1xx10^(-31) kg).

A body moves in a circular path of radius 4m with a velocity of 6 ms^(-1) . Find the angular velocity.

An artificial satellite of mass m is orbiting around the earth of mass M in an orbit of radius R, with a constant angular velocity. What is the angular momentum of a satellite ?

An electron in an atom revolves around the nucleus in an orbit of radius 0.5 angstrom. Calculate the equivalent magnetic moment if frequency of revolution is 10^10 MHz .

The orbital angular momentum of an electron in 2s-orbital is:

In Bohr's model of hydrogen atom, the electron circulats around nucleus on a path of radius 0.53A^@ at a frequency of 6.8 xx 10^15 rev//sec . Calculate magnetic field induction at the centre of the nucleus. What is the effective magnetic dipole moment?