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Which of the following are the characteristics of electromagnetic waves? 1. They are elastic waves. 2. They can also move in vacuum. 3. They have electric and magnetic components which are mutually perpendicular. 4. They move with a speed equal to 3 lakh meters per second. Select the correct answer using the code given below :

Options

  1. A1,2,3 and 4
  2. B1,2 and 4 only
  3. C2 and 3 only
  4. D3 and 4 only

Correct answer

C. 2 and 3 only

Step-by-step solution

In electromagnetic waves, the electric field is perpendicular to the magnetic field. Contrary to elastic waves these types of wave can travel through vacuum with speed of 3 108 ~m / s .

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