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 takes short time for a pulse wave.
The correct answer is: Of short duration
- A pulse is a wave of short duration.
- It is a single disturbance that travels through a medium.
- So, the correct option is b.
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