Which one of the following are the characteristics of electromagnetic – McqOptions

MCQOPTIONS

1.	Which one of the following are the characteristics of electromagnetic waves?1) They are elastic waves.2) They can also move in a vacuum.3) They have electric and magnetic components that 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:
A.	1, 2, 3 and 4
B.	1, 2 and 4 only
C.	2 and 3 only
D.	3 and 4 only
Answer» D. 3 and 4 only

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