Physics
Grade-9
Easy
Question
In which of the following media can non-mechanical waves travel?
- In a vacuum and in a medium
- In vacuum but not in a medium
- In a medium but not in a vacuum
- Neither in a medium nor a vacuum
Hint:
Mechanical waves require a medium to travel
The correct answer is: In a vacuum and in a medium
Non mechanical waves do not require particles to move hence they can move both in vacuum and in medium
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