Question

Given the value of Rydberg Constant is ${10}^{-7}{m}^{-1}$, the wave number of last line of the Balmer series in hydrogen spectrum will be:

• A. $0.025\times {10}^4{m}^{-1}$
• B. $0.25\times {10}^{-7}{m}^{-1}$
• C. $2.5\times {10}^{-7}{m}^{-1}$
• D. $2.5\times {10}^7{m}^{-1}$

Answer 1

Answer: (B), (D)

The correct options are
B

$0.25\times {10}^{-7}{m}^{-1}$

D

$2.5\times {10}^7{m}^{-1}$

Check out the video that follows!