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What transition in the hydrogen spectrum...

What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition `n=4` to `n=2` of `He^(+)` spectrum ?

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The correct Answer is:
`n_1 and n_2= 2 `
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CBSE COMPLEMENTARY MATERIAL-STRUCTURE OF ATOM-2-MARK QUESTIONS
  1. Define black body and black body radiations.

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  2. What transition in the hydrogen spectrum would have the same wavelen...

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  3. What transition of Li^(+2) spectrum will have same wavelength as that ...

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  4. Calcultte the enrgy required for the process , He^+ (g) rarr He^(2+...

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  5. Calculate the wave number for the longest wavelength transition in th...

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  6. To which orbit the electron in H atom will jump on absorbing 12.1 eV...

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  7. Calculate the energy associated with the first orbit of He^+. What is ...

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  8. What is the distance of separation between 3rd and 4th orbit of H-at...

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  9. The energy of the electron in the ground state of H-atom is -13.6 eV. ...

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  10. Calculate the number of protons emitted in 10 hours by a 60 W sodium ...

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  11. Which has a higher energy, a photon of violet light with wavelength 40...

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  12. A 100 watt bulb emits monochromatic light of wavelength 400 nm. Calcul...

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  13. What are the maximum number of emission lines when the excited elect...

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  14. Which has more energy, light radiation of wavelength 400 pm or light ...

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  15. Find the energy of electron in 4th shell of Li^(2+) ion.

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  16. What is the wave number of an electron with shortest wavelength radi...

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  17. Write short note on : Continuous and discontinuous spectrum.

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  18. Write short note on : Absorbtion and emission spectrum.

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  19. Calculate the mass of a photon with wavelength 3.6Å.

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  20. Calculate the mass of the photon with wavelength of 5 pm.

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