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In the hydrogen spectrum, the ratio of t...

In the hydrogen spectrum, the ratio of the longest wavelength in the Balmer series to the longest wavelength in the Paschen series is

A

`20/7`

B

`7/20`

C

`23/5`

D

`5/23`

Text Solution

Verified by Experts

The correct Answer is:
B
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SURA PUBLICATION-NUCLEAR PHYSICS-ADDITIONAL QUESTIONS & ANSWER (FILL IN THE BLANKS)
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  15. The ground state energy of hydrogen atom is -13.6eV. When its electron...

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  16. The total energy of an electron in the first excited state of hydrogen...

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  18. Percentage of U^(238) in natural uranium is .

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