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

Question

( A ) $0.25 \times 10^7 \;m^{–1}$
( B ) $0.5 \times 10^7 \;m^{–1}$
( C ) $0.025 \times 10^4 \;m^{–1}$
( D ) $2.5 \times 10^7 \;m^{–1}$