science
Grade-4-
Easy
Question
A pulse is a wave
- Of high duration
- Of short duration
- Which travels in a vacuum only
- Which travels in solids only
Hint:
It is very sudden and of less time.
The correct answer is: Of short duration
- A pulse is a wave of short duration.
- Due to sudden vibration of the source.
- So, the correct option is b.
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