GKFix MCQ Question

What is the energy of a photon with wavelength 500 nm?

• A. 2.50 × 10⁻¹⁹ J
• B. 3.98 × 10⁻¹⁹ J
• C. 4.80 × 10⁻¹⁹ J
• D. 5.20 × 10⁻¹⁹ J