Structure of Atoms and Nuclei Mock Test (Physics) MHT CET 2022

An electron jumps from 4th orbit to the 1st orbit of hydrogen atom. Given that R= 10^5 cm³. The frequency in Hz of emitted radiations will be

The first line of balmer series has wavelength 6563 A°. What will be the wavelength of first member of lyman series ?

Shortest wavelength in the Lyman series is 912A°. The longest wavelength in this series will be

The ratio of largest to shortest wavelength in Lyman series of hydrogen spectra is

If λmax = 6563 A°, then the wavelength of second line for Balmer series will be

The ratio of angular momentum of the orbital electron in the first orbit to that in the 2nd orbit is

The ground state energy of hydrogen atom is -13.6 eV . What is the potential energy of the electron in this state ?

A ground state hydrogen atom has energy -13.6eV. If the electron is excited to the energy state n=3 , its energy becomes

Energy of the lowest level of hydrogen atom is -13.6eV. The energy of the photon emitted in the transition from n=3 to n=1 is

Number of spectral line in hydrogen atom is

In Bohr’s theory of Hydrogen atom, the electron jumps from the higher orbit ‘n’ to lower orbit ‘p’ . The wavelength will be minimum for the transition

The ratio of wavelengths of the last line of Balmer series and the last line of Lyman series

When electron jumps from n=4 level to n=1 level, the angular momentum of electron changes by

For the hydrogen atom the energy of radiation emitted in the transition from 4th excited state to 2nd excited state, according to Bohr’s Theory is

When ‘W’ joule of work done on a flywheel . its frequency of rotation increases from n1 Hz to n2 Hz . The M.I of flywheel about its axis of rotation is given by

A particle is moving in a circular path of radius a under the action of an attractive potential  U = -k/2r² . Its total energy is

For increasing the angular velocity of a object by 10%, the kinetic energy has to be increased by