How Many Photons Are Contained in a Burst of Yellow

question 56

Multiple Choice

How many photons are contained in a burst of yellow light (589 nm) from a sodium lamp that contains 623 kJ of energy?

• A) 2.10 × 10¹³ photons
• B) 3.06 × 10³⁰ photons
• C) 1.85 × 10²⁴ photons
• D) 4.03 × 10²⁸ photons
• E) 2.48 × 10²⁵ photons

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