Which electromagnetic wave region possesses photons with the greatest frequency and highest quantum energy?
Answer and explanation
Correct answer: C. Gamma rays
- Step 1: Recall the ordering of the electromagnetic spectrum by frequency and photon energy ().
- Step 2: In order of increasing frequency: radio < microwaves < infrared < visible < ultraviolet < X-rays < gamma rays. Gamma rays have the highest frequencies and photon energies.
Answer
Gamma rays.
Why not the others: Infrared, microwaves, and ultraviolet all reside at lower frequencies than gamma radiation.
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