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Physics

NEET PhysicsClass 12Sources of electromagnetic wavesMediumStatement based

Question 7 of 10

Four claims are made about how electromagnetic waves are produced and how they travel. Which of them hold?

  • I. Electromagnetic waves carry energy from one place to another.
  • II. An accelerated charge radiates em waves, but a charge moving with constant velocity does not.
  • III. In vacuum, higher-frequency em waves travel faster than lower-frequency ones.
  • IV. Electromagnetic waves need a material medium to travel.

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