Blue light has frequency 6.0 × 10^14 Hz. Calculate one photon's energy using h = 6.63 × 10^-34 J s.

3.98 × 10^-19 J, about 4.0 × 10^-19 J. Use E = hf. E = 6.63 × 10^-34 × 6.0 × 10^14. E = 3.978 × 10^-19 J, which rounds to 4.0 × 10^-19 J.

MYP Physics · 12 · free response

Blue-light photon energy

Electromagnetic spectrum · Original GioPhysics question with a detailed, mark-by-mark answer guide.

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