Which one among the following waves carries the maximum energy per photon ?
X-rays
Radio waves
Light waves
Microwaves
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-2 – 2017
The energy carried by a single photon is directly proportional to the frequency of the electromagnetic wave. The relationship is given by the equation E = hf, where E is the energy of the photon, h is Planck’s constant, and f is the frequency of the wave. Comparing the given options based on their typical frequencies in the electromagnetic spectrum (from lowest frequency/energy to highest): Radio waves < Microwaves < Light waves (visible light) < X-rays. Therefore, X-rays have the highest frequency and carry the maximum energy per photon among the listed options. – Photon energy is directly proportional to wave frequency (E = hf).
– X-rays have higher frequency than radio waves, microwaves, and visible light.
– Higher frequency means higher energy per photon.