Write three differences between sound and light waves.
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sound waves: 1)they need a medium.
2)they are of different frequencies.
3)they are longitudinal waves.
4)they travel at a speed of 332m/s.
light waves:1)they do not need a medium.
2)not of different frequencies.
3)electromagnetic waves.
4)travel at a speed of 3*10^8 m/ s.
2)they are of different frequencies.
3)they are longitudinal waves.
4)they travel at a speed of 332m/s.
light waves:1)they do not need a medium.
2)not of different frequencies.
3)electromagnetic waves.
4)travel at a speed of 3*10^8 m/ s.
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