Question

Statement I : Wavelength of limiting line of lyman series is less than wavelength of limiting line of Balmer series.
Statement II: Rydberg constant value is same for all elements

• A. Statement I is true, Statement II is also true; Statement is the correct explanation of Statement I
• B. Statement I is true, Statement II is also true; Statement II is not the correct explanation of Statement I
• C. Statement I is true, Statement II is false
• D. Statement I is false, Statement II is true

Answer 1

Answer: (C)

Statement I is true, Statement II is false

Lyman series Balmer series
Limiting line : $n=\infty ton=1$ $n=\infty ton=2$
$E_l>E_B$ [limiting case]
${\lambda }_l<{\lambda }_B$
Rydberg constant represents the limiting value of the highest wavenumber of any photon that can be emitted from an atom.
$\frac{1}{{\lambda }_l}=Z^{2}R[{\lambda }_l=limitingcase]$