Hydrogen atom is excited by means of a monochromatic radiations of wavelength 975 Å. In emission spectrum the number of possible lines are :
Text Solution
Verified by ExpertsThe correct answer is:
D
Energy of the photon, 
After absorbing a photon of energy 12.75 eV , the electron will reach to third excited state of energy -0.85 eV , since energy difference corresponding to 
and 
is 12.75 eV .
∴ Number of spectral lines emitted
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