science
Grade-4-
Easy
Question
In which of the following medium, mechanical waves can be generated?
- Vacuum
- Water
- Both (b) and (d)
- Air
Hint:
Mechanical waves needs medium particles to propagate.
The correct answer is: Both (b) and (d)
- Mechanical waves needs medium particles to propagate.
- Therefore, these waves can be generated in water and air, but not in vaccum.
- So, the correct option is c.
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