Which of the following is an electromagnetic wave which can travel even through a vacuum?

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Sound wave

Electrosonic waves

X- rays

Sound of a flute

answer is C.

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Detailed Solution

X-rays are electromagnetic waves which can travel even through a vacuum.
In addition to electromagnetic waves, high-energy electrons that are abruptly stopped in a metal with a high atomic number can produce X-rays. A vacuum is an X-ray medium. Electric and magnetic vectors simultaneously experience sinusoidal changes in electromagnetic waves. Electric and magnetic field vectors vary in directions that are perpendicular to one another and to the direction of transmission. Electric and magnetic fields do not deflect uncharged electromagnetic waves.

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