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Find the energy released (in erg) when 2...

Find the energy released (in erg) when `2.0 g` atom of hydrogen undergoes transition giving a spectral line of the lowest energy in the visible region of its atomic spectra

A

`3.30 xx10^(-19)` ergs

B

`2.18 xx10^(-18)` ergs

C

`3.65 xx10^(12)` ergs

D

`3.05 xx10^(5)` ergs

Text Solution

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The correct Answer is:
C
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VMC MODULES ENGLISH-STRUCTURE OF ATOM-EFFICIENT
  1. The quantum numbers +1//2 and -1//2 for the electron spin represent :

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  2. How many electrons in an atom with atomic number 105 can have (n + l) ...

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  3. Find the energy released (in erg) when 2.0 g atom of hydrogen undergoe...

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  4. If an electron in a hydrogen atom is moving with a kinetic energy of...

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  5. The wavelength of certain line in H-atom spectra is observed to be 434...

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  6. The frequency of H(beta) line of lyman seris of hydrogen is

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  7. Which of the following describes out-crossing ?

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  8. A hydrogen atom in ground state absorbs 10.2eV of energy .The orbital ...

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  9. In which of the following system will the wavelength corresponding to ...

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  10. Calculate the uncertainty in position assuming uncertainty in mom...

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  11. Which of these is true ?

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  12. The total number of nodal planes present in the third shell will be

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  13. In hydrogen atom an orbit has a diameter of about 16.92 Å, what is the...

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  14. An electron in a hydrogen like species makes a transition from the nt...

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  15. The angular momentum of an electron in a Bohr's orbit of hydrogen atom...

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  16. The angular momentum of an electron in a Bohr's orbit of hydrogen atom...

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  17. A monochromatic source of light operating at 200W emits 4 xx 10^20 ...

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  18. Calculate the uncertainty in the momentum of an electron if it is conf...

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  19. What should be the velocity of an electron so that its momentum become...

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  20. The nucleus of an atom is lecated at x= y= z = 0 a. If the probabil...

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