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Hydrogen Spectra

For the Pasch...

Question

For the Paschen series the values of $n_{1}$ and $n_{2}$ in the expression $Δ E = R h c (\frac{1}{n_{1}^{2}} - \frac{1}{n_{2}^{2}})$ are

n_{1} = 1, n_{2} = 2, 3, 4, \dots

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n_{1} = 2, n_{2} = 3, 4, 5, \dots

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n_{1} = 3, n_{2} = 4, 5, 6, \dots

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n_{1} = 4, n_{2} = 5, 6, 7, \dots

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Solution

The correct option is D $n_{1} = 3, n_{2} = 4, 5, 6, \dots$
Paschen series is the third series of hydrogen spectrum and lies in the infrared region, therefore for this series, $n_{1} = 3$ and $n_{2} > n_{1}$ , ie, $4, 5, 6, \dots$

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For the Paschen series the values of n1 and n2 in the expression ΔE=Rhc(1n21−1n22) are

The correct option is D n1=3,n2=4,5,6,…Paschen series is the third series of hydrogen spectrum and lies in the infrared region, therefore for this series, n1=3 and n2>n1, ie, 4,5,6,…

For the Paschen series the values of $n_{1}$ and $n_{2}$ in the expression $Δ E = R h c (\frac{1}{n_{1}^{2}} - \frac{1}{n_{2}^{2}})$ are

The correct option is D $n_{1} = 3, n_{2} = 4, 5, 6, \dots$
Paschen series is the third series of hydrogen spectrum and lies in the infrared region, therefore for this series, $n_{1} = 3$ and $n_{2} > n_{1}$ , ie, $4, 5, 6, \dots$