A hydrogen atom in its ground | Physics | JEE ADVANCED 2016

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JEE Advanced 2016

Paper-1 2016

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A hydrogen atom in its ground state is irradiated by light of wavelength $970 A$. Taking hc/e $= 1.237 \times 10^{-6} \mathrm{eV} \mathrm{m}$ and the ground state energy of hydrogen atom as -13.6 eV , the number number of lines present in the emission spectrum is.

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