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The ratio of the largest to shortest wavelengths in Balmer series of hydrogen spectra is,

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Important Questions on Modern Physics

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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,
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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?
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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,
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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,
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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,
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 9 - Modern Physics>Objective Problems [Level 1]>Q 43
The first excitation potential of hydrogen atom in the ground state is,
HARD
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 9 - Modern Physics>Objective Problems [Level 1]>Q 44
If the wavelength of first member of Balmer series of hydrogen spectrum is 6563 A∘, the wavelength of second member of Balmer series will be,