In an atom for the electron to revolve around the nucleus, the necessary centripetal force is obtained from the following force exerted by the nucleus on the electron
Nuclear force
Gravitational force
Magnetic force
Electrostatic
In the result of the Geiger-Marsden experiment, by which the trajectory of the $\alpha $ -particle can be calculated ?
If in Rutherford’s experiment, the number of particles scattered at ${90^o}$ angle are $28$ per min, then number of scattered particles at an angle ${60^o}$ and ${120^o}$ will be
Explain the Rutherford atomic model and its limitation.
Choose the correct option from the following options given below
The first line in the Lyman series has wavelength $\lambda $. The wavlength of the first line in Balmer series is