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The energy of the em waves is of the order of 15 keV. To which part of the spectrum does it belong?

1. Infra-red rays
2. Ultraviolet rays
3. γ-rays
4. X-rays

Correct answer: X-rays

Solution

The energy of electromagnetic waves in the range of 15 keV corresponds to X-rays, as X-rays typically have energies between 0.1 keV and 100 keV.

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