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CBSE Class 12-science Answered

consider a hypothesis H-like atom, the wavelength in Amstrong for the spectral lines for the transition from n=p to n=1 is given as  wavelength =1500p^2/p^2 -1 where p>1 find the minimum and maximum wavelength
Asked by Akshatkuma2004 | 04 Jul, 2021, 04:04: PM
answered-by-expert Expert Answer
Wavelength λ is given as
 
λ = 1500 × begin mathsize 14px style fraction numerator p squared over denominator p squared minus 1 end fraction end style   , where p > 1
 
Units for the constant 1500 is not known . 
 
we get maximum wavelength when p =2 , hence begin mathsize 14px style fraction numerator p squared over denominator p squared minus 1 end fraction end style = (4/3)   and  λ = 2000
Minimum wavelegth is obtained when p >> 1 , so that  begin mathsize 14px style fraction numerator p squared over denominator p squared minus 1 end fraction end style ≈ 1   and λ = 1500 
Answered by Thiyagarajan K | 04 Jul, 2021, 05:30: PM
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