A sample of hydrogen gas is excited by means of a monochromatic radiation. In the subsequent emission spectrum, $$10$$ different wavelengths are obtained, all of which have energies greater than or equal to the energy of the absorbed radiation. The initial quantum number of the state (before$$ absorbing $$radiation) is

Question

Infinity Learn · Accepted Answer

$$10$$ emission lines ⇒ final state $$n=$$ $$5If$$ the initial state were not n $$=$$ $$4$$, in the emission spectrum, some lines with energies less than that of absorbed radiation would have been observed.∴ Initial state n $$=$$ $$4$$.

Hydrogen spectrum

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10 emission lines $\Rightarrow$ final state n= 5
If the initial state were not n = 4, in the emission spectrum, some lines with energies less than that of absorbed radiation would have been observed.
$∴$ Initial state n = 4.

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Hydrogen spectrum

Remember concepts with our Masterclasses.

10 emission lines ⇒ final state n= 5If the initial state were not n = 4, in the emission spectrum, some lines with energies less than that of absorbed radiation would have been observed.∴ Initial state n = 4.

Ready to Test Your Skills?

free study material

10 emission lines $\Rightarrow$ final state n= 5
If the initial state were not n = 4, in the emission spectrum, some lines with energies less than that of absorbed radiation would have been observed.
$∴$ Initial state n = 4.