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Questions  

An electron revolve round the nucleus of  a hydrogen like  atom of atomic no  4. In order to excite the electron from state n=2 to n=3 the energy required is 

a
47.2 eV
b
30.2 eV
c
17 eV
d
13.6 eV

detailed solution

Correct option is B

Energy of H atom = 13.614−1916= energy required

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Similar Questions

In a sample of ions, a Li++ ion electron in first Bohr orbit is excited to a level by a radiation of wavelength λ. When the ion gets de-excited to the ground state in all possible ways (including intermediate emissions), a total of six spectral lines are observed. What is the value of λ ?

 (Given, h=6.63×1034Js,c=3×108ms1


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