Chapter 11, Problem 11.15E

The $\text{O}-\text{H}$ bond in water vibrates at a frequency of $3650{\text{cm}}^{-1}$. What wavelength and frequency (in ${\text{s}}^{-1}$) of light would be required to change the vibrational quantum number from $n=0$ to $n=4$, assuming $\text{O}-\text{H}$ acts as a harmonic oscillator?