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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsAtomic structureHard2 minPYQ_2006

PhysicsHardsingle choice

Ionization potential of hydrogen atom is $13.6 eV$ . Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy $12.1 eV$ . According to Bohr's theory, the spectral lines emitted by hydrogen will be:NEET 2006

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Solution:

According to question $12.1 = 13.6 (\frac{1}{l ^{2}} - \frac{1}{n ^{2}}) \Rightarrow n^{2} = \frac{13.6}{1.5} = 9 \Rightarrow n = 3$ Number of spectral lines emitted $= \frac{n ( n - 1 )}{2} = \frac{3 \times 2}{2} = 3$

Stream:NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Atomic structure

⏱ 2mℹ️ Source: PYQ_2006

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