Question

The wavelength (in cm) of second line in the Lyman series of hydrogen atomic spectrum is (Rydberg constant = R cm$^{-1}$)

• A. $\left(\frac{8R }{9 }\right)$
• B. $\left(\frac{9 }{8R }\right)$
• C. $\left(\frac{4 }{3R }\right)$
• D. $\left(\frac{3R }{4 }\right)$

Answer 1

Answer: (B)

$\left(\frac{9 }{8R }\right)$

Answer 2

Answer (b) $\left(\frac{9 }{8R }\right)$