1.

An excited hydrogen atom emits a photon of wavelength t while returning to the ground state. If R is the Rydberg.s constant, then the quantum number n of the excited state is

Answer»

`sqrt(LAMBDA R)`
`sqrt(lambda R-1)`
`sqrt((LAMBDAR)/(lambdaR-1))`
`sqrt(lambda R(lambda R-1))`

SOLUTION :`BAR(upsilon) = 1/(lambda) = R(1/(n_1^2) - 1/(n_2^2))`
` implieslambda= (n^2)/(R(n^2-1)),n = sqrt((lambdaR)/(lambda R-1))`


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