Physics
Grade-8
Easy

Question

The electromagnetic waves travel

  1. At the same speed in all medium
  2. At the same speed in metals
  3. At the same speed in a vacuum
  4. At different speeds in a vacuum

hintHint:

At the same speed in vaccum.

The correct answer is: At the same speed in a vacuum


    • All the EM waves travel with same speed as of light in vaccum. But in other media they travel with different speed as their wavelength differ from each other.

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