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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,
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Important Questions on Modern Physics
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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,
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JEE Advanced
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The first excitation potential of hydrogen atom in the ground state is,
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JEE Advanced
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If the wavelength of first member of Balmer series of hydrogen spectrum is , the wavelength of second member of Balmer series will be,
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JEE Advanced
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Hydrogen atom emits blue light when it jumps from level to the level. Which colour of light would the atom emit when it changes from the level to level?
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JEE Advanced
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The second line in the Paschen series is obtained when the electron makes the transition from
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JEE Advanced
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The electron in a hydrogen atom makes the transition from -shell to -shell. The ratio of the magnitude of initial to the final acceleration of the electron is
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JEE Advanced
IMPORTANT
The orbital angular momentum of an electron in the shell of the element of atomic number is and the same in the shell of an element of atomic number is . If , then
