Which of the following is not an electromagnetic wave?

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Radio waves

X – rays

Earthquake P – waves

Gamma rays

answer is C.

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Detailed Solution

Concept- Look for the option that does not fall within the electromagnetic spectrum in this question. In this spectrum, each wave has its own frequency and wavelength range. So, use the frequency and wavelength ranges of electromagnetic spectra to find the option that does not fall within that range. As we know, radio waves, X-rays, and gamma rays all have different frequencies and wavelengths in the electromagnetic spectrum. Earthquake P – waves, on the other hand, are not electromagnetic waves; in seismology, they are referred to as seismic waves. As a result, this is the required response.
Hence, option 3 is the correct answer.

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