Physics
Grade-7
Easy
Question
In which of the following media can non-mechanical waves travel?
- In a vacuum and a medium
- In vacuum but not in a medium
- In a medium but not in a vacuum
- In a medium but not in a vacuum
Hint:
In vacuum and a medium
The correct answer is: In a vacuum and a medium
- Electromagnetic waves are non mechanical waves that do not require a medium to propagate, unlike mechanical waves. This indicates that electromagnetic waves can propagate not only through air and solid things, but also across space.
- The particles of non-mechanical waves can move energy from one location to another without the use of a medium, resulting in faster energy transmission in the vacuum. Light is the faster-moving wave that moves through the air.
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