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When an electron jumps from a level `n = 4` to` n = 1`, the momentum of the recoiled hydrogen atom will be

A

`6.5 xx 10^(-27) "Kgms"^(-1)`

B

`12.75 xx 10^(-19)"kgms"^(-1)`

C

`13.6 xx 10^(-27) "kgms"^(-1)`

D

Zero

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A
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AAKASH SERIES-ATOMS-EXERCISE -III
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  3. When an electron jumps from a level n = 4 to n = 1, the momentum of t...

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  4. The energy change is greatest for a hydrogen atom when its state chang...

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  5. As the electron in the Bohr orbit is hydrogen atom passes from state n...

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  6. The energy of an electron in excited hydrogen atom is -3.4 eV . Then, ...

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  8. The ionisation potential of hydrogen atom is 13.6 eV. The energy requi...

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  9. The radius of the Bohr orbit in the ground state of hydrogen atom is 0...

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  10. The potential energy of an electron in the fifth orbit of hydrogen ato...

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  11. If R is the Rydberg constant for hydrogen, then the wave number of the...

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  12. If lamda1 and lamda2 are the wavelengths of the first members of the L...

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  13. The ratio of maximum to minimum possible radiation energy Bohr's hyp...

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  14. The shortest wavelength of Balmer series of H-atom is

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  15. Given mass number of gold = 197, Density of gold = 19.7 g cm^(-3). The...

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  16. Transition between three energy energy levels in a particular atom gi...

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  17. An electron in a hydrogen atom makes a transition from n(1) to n(2). I...

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  18. An electron revolving in an orbit of radius 0.5 Å in a hydrogen atom e...

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  19. The radius of second Bohr’s orbit of Hydrogen atom is:

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  20. If one were to apply Bohr model to a particle of mass 'm' and charge '...

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