GKFix MCQ Question

What is the frequency of a wave with a wavelength of 200 nm?

• A. 1.0 × 10¹⁵ Hz
• B. 1.2 × 10¹⁵ Hz
• C. 1.5 × 10¹⁵ Hz
• D. 1.8 × 10¹⁵ Hz