Among the following transition in hydrogen and hydrogen-like spectrum, which one emits light of lngest wavelength ?A. `n = 2` "to" `n = 1` "for" `H`B. `n = 4` "to"` n = 3` "for"` Li^(2+)`C. `n = 4` "to" `n = 3` "for" `He^(o+)`D. `n = 5` "to" `n = 2` "for" `H`

Among the following transition in hydrogen and hydrogen-like spectrum,

1.	Among the following transition in hydrogen and hydrogen-like spectrum, which one emits light of lngest wavelength ?A. `n = 2` "to" `n = 1` "for" `H`B. `n = 4` "to"` n = 3` "for"` Li^(2+)`C. `n = 4` "to" `n = 3` "for" `He^(o+)`D. `n = 5` "to" `n = 2` "for" `H`
Answer» Correct Answer - C Longest `lambda` or shortest E a. `(1)/(lambda) = R ((1)/(1) - (1)/(4)) = (3R)/(4) = 0.75 R` b.`(1)/(lambda) = R xx Z^(2)((1)/(3^(2)) - (1)/(4^(2))) = R xx 9 xx (7)/(114) = 0.4375 R` c.`(1)/(lambda) = R xx 2^(2)((1)/(3^(2)) - (1)/(4^(2))) = R xx 4 xx (7)/(114) = 0.194R` `(1)/(lambda) = R ((1)/(2^(2)) - (1)/(5^(2))) = R xx (21)/(100) = 0.21 R` Lowest value of `1//lambda` highest value of `lambda` is in c

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Among the following transition in hydrogen and hydrogen-like spectrum, which one emits light of lngest wavelength ?A. `n = 2` "to" `n = 1` "for" `H`B. `n = 4` "to"` n = 3` "for"` Li^(2+)`C. `n = 4` "to" `n = 3` "for" `He^(o+)`D. `n = 5` "to" `n = 2` "for" `H`

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