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Q.

Is it true that radio waves require a medium for its propagation?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is False.
Unlike sound waves, electromagnetic waves do not need a medium to travel, and this means that electromagnetic waves can travel through air, solid, or even space, and radio waves are one kind of electromagnetic wave. Radio waves, microwaves, infrared waves, X Rays, etc., are electromagnetic waves. In contrast, a mechanical wave requires a material medium for its propagation, or it is a wave that transfers energy through a medium. Sound, water, seismic waves, etc., are examples of mechanical waves.
The correct statement would be that radio waves don’t require a medium for their propagation.
 
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