Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>Competition Focus>Q 141

MEDIUM

11th CBSE

IMPORTANT

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Not considering the electronic spin, the degeneracy of the second excited state of $H^{-}$ is

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Important Questions on Structure of Atom

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>Competition Focus>Q 142

For the following question, enter the correct numerical value, (in decimal-notation, truncated/rounded-off to the second decimal place,

e . g ., 6.25, 7.00, - 0 \cdot 33, 30 \cdot 27, - 127 \cdot 30)

using the mouse and the onscreen virtual numeric keypad in the place designated to enter the answer.
The atomic spectrum of hydrogen is found to contain a series of lines of wavelengths

656.46, 486 \cdot 27, 434.17 and 410 \cdot 29 nm

. The wavelength (in nm) of the next line in the series will be _____.