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Q.

The wave length of $H_{δ}$ line of Balmer series of a hydrogen atom is nearly $(take \frac{1}{R_{H}} = 912 \overset{0}{A})$

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a

$7200 \overset{0}{A}$

b

$6800 \overset{0}{A}$

c

$4104 \overset{0}{A}$

d

$5400 \overset{0}{A}$

answer is A.

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Detailed Solution

Question Image

$λ = \frac{912 n_{1 .}^{2} n_{2}^{2}}{n_{2}^{2} - n_{1}^{2}}$

$4104 \overset{0}{A}$

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