In a hypothetical system , a partical of mass `m` and charge `-3 q` is moving around a very heavy partical chaRGE `q`. Assume that Bohr's model is applicable to this system , then velocuity of mass `m` in the first orbit is

A particle of charge equal to that of electron and mass 208 times the mass of the electron moves in a circular orbit around a nucleus of charge +3e. Assuming that the Bohr model of the atom is applicable to this system find the value of n for which the radius of the orbit is approximately the same as that of the first Bohr orbit of the hydrogen atom.

A particle of mass m carrying charge '+q_(1)' is revolving around a fixed charge '-q_(2)' in a circular path of radius r. Calculate the period of revolution.

A particle of mass m and carrying charge -q_(1) is moving around a charge +q_(2) along a circular path of radius r period of revolution of the charge -q_(1) about +q_(2) is

A particle of mass m and charge -q circulates around a fixed charge q in a circle radius under electrostatic force. The total energy of the system is (k= (1/4piepsilon_0) )

A particle known as mu mean has a charge equal to that of no electron and mass 208 times the mass of the electron B moves in a circular orbit around a nucleus of charge +3e Take the mass of the nucles to be infinite Assuming that the bohr's model is applicable to this system (a)drive an eqression for the radius of the nth Bohr orbit (b) find the value of a for which the redius of the orbit it approninately the same as that at the first bohr for a hydrogen atom (c) find the wavelength of the radiation emitted when the u - mean jump from the orbit to the first orbit

A particle of mass m carrying a charge -q_(1) starts moving around a fixed charge +q_(2) along a circulare path of radius r. Find the time period of revolution T of charge -q_(1) .

An imaginary particle has a charge equal to that of an electron and mass 100 times tha mass of the electron. It moves in a circular orbit around a nucleus of charge + 4 e. Take the mass of the nucleus to be infinite. Assuming that the Bhor model is applicable to this system. (a)Derive an experssion for the radius of nth Bhor orbit. (b) Find the wavelength of the radiation emitted when the particle jumps from fourth orbit to the second orbit.

A charged particle of mass m_(1) and charge q_(1) is revolving in a circle of radius r .Another charged particle of charge q_(2) and mass m_(2) is situated at the centre of the circle.If the velocity and time period of the revolving particle be v and T respectively then