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The ratio of the largest to shortest wavelengths in Balmer series of hydrogen spectra is,
(a)
(b)
(c)
(d)
(e)

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Important Questions on Modern Physics
HARD
JEE Advanced
IMPORTANT
In a hydrogen atom, if the difference in the energies of the electron in and orbits is , the ionization energy of hydrogen atom is,

MEDIUM
JEE Advanced
IMPORTANT
Which of the following is not correct in Bohr model of hydrogen atom?

MEDIUM
JEE Advanced
IMPORTANT
If is the speed of electron in the orbit in a hydrogen atom, then,

MEDIUM
JEE Advanced
IMPORTANT
An electron revolves around a nucleus of charge . In order to excite the electron from the state to , the energy required is . is equal to,

EASY
JEE Advanced
IMPORTANT
An electron with kinetic energy is incident on a -atom in its ground state. The collision,

MEDIUM
JEE Advanced
IMPORTANT
As per Bohr model, the minimum energy (in ) required to remove an electron from the ground state of doubly ionised atom is,

EASY
JEE Advanced
IMPORTANT
The first excitation potential of hydrogen atom in the ground state is,

HARD
JEE Advanced
IMPORTANT
If the wavelength of first member of Balmer series of hydrogen spectrum is , the wavelength of second member of Balmer series will be,
