Assertion. In Lyman series of H-spectra, the maximum wavelength of lines is 121.56 nm Reason. Wavelength is maximum when the transition is from the very next level

Assertion. In Lyman series of H-spectra, the maximum wavelength of lin

1.	Assertion. In Lyman series of H-spectra, the maximum wavelength of lines is 121.56 nm Reason. Wavelength is maximum when the transition is from the very next level
Answer» If both assertion and REASON are true, and reason is the true explanation of the arrertion If both assertion and reason are true, but reason is not the true explanation of the assertional If assertion is true, but reason is false If both assertion and reason are false Solution :`(1)/(LAMDA) = R_(H) Z^(2) [(1)/(n_(1)^(2)) - (1)/(n_(2)^(2))]` For Lyman series, `n_(1) = 1`. For the next level, `n_(2) = 2`. Hence, `(1)/(n_(1)^(2)) - (1)/(n_(2)^(2))` will be minimum or `lamda` will be maximum. `((1)/(lamda) = 109678 xx (1)^(2) [(1)/(1^(2)) - (1)/(2^(2))] CM^(-1) = 109678 xx (3)/(4) cm^(-1) or lamda = (4)/(3) xx (1)/(109678) cm = 121.56 xx 10^(-7) cm = 121.56 xx 10^(-9) m = 121.56 nm)`