Final answer:
Laser and X-ray photons share the features of coherence, monochromaticity, and having the same energy.
Explanation:
The common feature of laser and X-ray photons is that they:
- Are coherent.
- Are monochromatic.
- Have the same energy.
Laser light is coherent and monochromatic, meaning the photons are in-phase and have a single frequency. The energy of a photon is directly proportional to its frequency. Therefore, laser and X-ray photons share the characteristic of having the same energy, coherence, and monochromatic nature.
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