1.

The wavelength of the radiation emitted, when in a hydrogen atom electron falls from infinity to stationary state 1, would be (Rydberg constant \[=\,1.097\,\times \,{{10}^{7}}{{m}^{-1}}\]) [AIEEE 2004]

A.        406 nm
B.        192 nm
C.        91 nm   
D.        \[9.1\,\times \,{{10}^{-8}}\,\,nm\]
Answer» D.        \[9.1\,\times \,{{10}^{-8}}\,\,nm\]


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