GKFix MCQ Question

What is the energy of a photon with a frequency of 3 × 10¹⁵ Hz?

• A. 1.986 × 10⁻¹⁸ J
• B. 1.986 × 10⁻¹⁷ J
• C. 1.986 × 10⁻¹⁶ J
• D. 1.986 × 10⁻¹⁵ J