Question

In which of the following transitons in hydrogen atom will the wavelength be minimum?

Answer 1

Answer:

The wavelength of photon given is ;

λ1=R(nf21−ni21)

⇒ For minimum λ,nf21−ni21 should be maximum

(i) 421−621=0.034

(ii) 221−421=0.187

(iii) 121−321=0.888 This is maximum so corresponding wavelength will be minimum

(iv) 121−221=0.75.

Therefore, the option is C.