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Which of the following properties is NOT TRUE about Electromagnetic waves?

A. All types of EM waves have the same frequency.
B. EM waves can travel even without a medium.
C. All types of EM waves travel at the same speed.
D. EM waves consist of vibrating electric and magnetic fields.

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Answer:

B.EM waves can travel without a midium

In electromagnetic waves,

1. The electric field and magnetic field varies continuously with time and have maxima and minima at same place and at same time.

2. Both electric and magnetic field have same energy.

3. both electric and magnetic field are perpendicular to each other and perpendicular to direction of propagation.

4. These waves don't require any material medium to propagate, they can propagate in vacuum as well.

So, the false statement will be the statement given in the option (C)

Hence, the correct option is (C)

Explanation:

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