EASY
JEE Advanced
IMPORTANT
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Atomic hydrogen is excited from the ground state to the nth state. The number of lines in the emission spectrum will be,

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Important Questions on Modern Physics

EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 9 - Modern Physics>Objective Problems [Level 1]>Q 35
The difference in angular momentum associated with the electron in the two successive orbits of hydrogen atom is,
MEDIUM
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 9 - Modern Physics>Objective Problems [Level 1]>Q 36
The ratio of the largest to shortest wavelengths in Balmer series of hydrogen spectra is,
HARD
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 9 - Modern Physics>Objective Problems [Level 1]>Q 37
In a hydrogen atom, if the difference in the energies of the electron in n=2 and n=3 orbits is E, the ionization energy of hydrogen atom is,
MEDIUM
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 9 - Modern Physics>Objective Problems [Level 1]>Q 38
Which of the following is not correct in Bohr model of hydrogen atom?
MEDIUM
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 9 - Modern Physics>Objective Problems [Level 1]>Q 39
If ω is the speed of electron in the nth orbit in a hydrogen atom, then,
MEDIUM
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 9 - Modern Physics>Objective Problems [Level 1]>Q 40
An electron revolves around a nucleus of charge Ze. In order to excite the electron from the state n=2 to n=3, the energy required is 47.2 eV. Z is equal to,
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 9 - Modern Physics>Objective Problems [Level 1]>Q 41
An electron with kinetic energy 5 eV is incident on a H-atom in its ground state. The collision,
MEDIUM
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 9 - Modern Physics>Objective Problems [Level 1]>Q 42
As per Bohr model, the minimum energy (in eV) required to remove an electron from the ground state of doubly ionised Li atom is,