GKFix MCQ Question

What is the wavenumber of a wave with a wavelength of 750 nm?

• A. 1.00 × 10⁴ cm⁻¹
• B. 1.33 × 10⁴ cm⁻¹
• C. 1.50 × 10⁴ cm⁻¹
• D. 2.00 × 10⁴ cm⁻¹