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The wavelength of the radiation emitted, when in a hydrogen atom electron falls from infinity to stationary state 1, would be:

(Rydberg constant =1.097×10τm1)

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a
91 nm
b
192 nm
c
406 nm 
d
9.1×106nm

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detailed solution

Correct option is A

It is known that;

1λ=RH11212

λ=912

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