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Comprehension VII
A sample of \( \mathrm{H} \)-atoms contains all atoms in the ground state. If the atoms are irradiated by photons of \( x \AA \), the atoms get excited to a particular energy level. When these atoms de-excites, they emit radiations of six different photon energies.
What are the wavelengths of all infrared radiations coming out?
(a) \( 1887.3 \mathrm{~nm}, 4077.5 \mathrm{~nm} \)
(b) \( 1887.3 \mathrm{~nm} \)
(c) \( 122.3 \mathrm{~nm}, 103.2 \mathrm{~nm}, 97.9 \mathrm{~nm} \)
(d) \( 122.3 \mathrm{~nm}, 103.2 \mathrm{~nm} \)
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