Physics
Grade-8
Easy
Question
The lower portion of the graphical representation of the wave represent the ____.
- Compressions
- Rarefactions
- Crests
- All of the above
Hint:
The lower portion of the graphical representation shows the waves of rarefactions.
The correct answer is: Rarefactions
- The waves of a sound produce areas or peaks of higher and lower pressures.
- The higher pressure areas produce peaks in the upper region of the wave direction and they are called compressions.
- The peaks produced in the lower portions are of less pressure and they are called rarefactions.
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