What is the frequency (wavenumber) of 1100 nm light in cm⁻¹, the units used in IR spectroscopy?
A) 9. 09 × 10³ cm⁻¹
B) 9. 09 × 10⁴ cm⁻¹
C) 9. 09 × 10⁵ cm⁻¹
D) 9. 09 × 10⁶ cm⁻¹