Lakhmir Singh Solutions Class 9 Physics Solutions for Exercise in Chapter 5 - Sound
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a) Distinguish between longitudinal and transverse waves.
b) Are sound waves longitudinal or transverse?
Answer:
a) In longitudinal waves, the particles move back and forth in the same direction whereas in transverse waves, the particles move up and down.
Longitudinal waves can be produced in solids, liquids, and in gases, whereas transverse waves are produced only in solids and liquids.
b) Sound is a longitudinal wave.
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