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प्रश्न
When is Hα line in the emission spectrum of hydrogen atom obtained? Calculate the frequency of the photon emitted during this transition.
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उत्तर
Energy of an electron in the nth orbit hydrogen atom is given by ,
`E_n = -13.6//n^2eV`
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संबंधित प्रश्न
The nuclei having same number of protons but different number of neutrons are called ___ .
(a) isobars
(b) a-particles
(c) isotopes
(d) y-particles
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In hydrogen spectrum, the ratio of wavelengths of the last line of Lyman series and that of the last line of Balmer series is ______.
Match List I with List II.
| List-I (Spectral Lines of Hydrogen for transitions from) |
List-II (Wavelengths (nm)) |
||
| A. | n2 = 3 to n1 = 2 | I. | 410.2 |
| B. | n2 = 4 to n1 = 2 | II. | 434.1 |
| C. | n2 = 5 to n1 = 2 | III. | 656.3 |
| D. | n2 = 6 to n1 = 2 | IV. | 486.1 |
Choose the correct answer from the options given below:
