GKFix MCQ Question

What is the frequency range of visible light?

• A. 1 × 10¹³ Hz to 3 × 10¹⁴ Hz
• B. 3 × 10¹⁴ Hz to 5 × 10¹⁴ Hz
• C. 4 × 10¹⁴ Hz to 7.5 × 10¹⁴ Hz
• D. 7 × 10¹⁵ Hz to 9 × 10¹⁵ Hz