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X-rays travel in straight line are affected by

  • A.Electric field only
  • B.Magnetic field only
  • C.Both electric and magnetic field
  • D.Neither electric field nor magnetic field

Answer: D

X-rays are affected by neither electric nor magnetic fields.

X-rays are electromagnetic waves, streams of photons that carry no electric charge. A charged particle is deflected by electric and magnetic fields, but an uncharged photon travels straight through them.

This is how X-rays were shown to differ from cathode rays (electrons), which are bent by both fields. So the options saying they are affected by one or both fields are wrong.

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