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NDA General Science Physics Questions Part 3

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Question : 25

Total: 91

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:

1, 2, 3 and 4
1, 2 and 4 only
2 and 3 only
3 and 4 only

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