Physics
Grade-9
Easy
Question
When a longitudinal wave travels through a medium, the particles of the medium show compression and Rarefaction. What happens when compression takes place in the medium?
- The Density of the medium decreases.
- The pressure of the medium decreases.
- The molecules of the medium come closer to each other.
- The Wavelength of the wave increases.
Hint:
Compression make the particles come closer whereas it is opposite for rarefactions
The correct answer is: The molecules of the medium come closer to each other.
Longitudinal waves are mechanical waves in which the vibration of the particles takes place in the same direction as that of the wave therefore particles moving close to each other creates compression
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