Which component of the electromagnetic spectrum has the shortest wavelength and highest photon energy?
Answer and explanation
Correct answer: D. Gamma rays, located at the extreme high-frequency end of the spectrum
- Step 1: In the electromagnetic spectrum: Radio -> Microwave -> Infrared -> Visible -> Ultraviolet -> X-rays -> Gamma rays. Step 2. Gamma rays have the highest frequency (f > 10^19 Hz), highest photon energy (E = hf), and shortest wavelength. Answer: Gamma rays, located at the extreme high-frequency end of the spectrum. Why not the others: Radio waves have the lowest frequency and longest wavelength.
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