Answers

2016-02-05T15:19:39+05:30
Difference 1:
Light waves are electro-magnetic waves, wound waves are elastic or mechanical waves.
Difference 2:
Sound waves can not propagate in vacuum, light waves can travel in vacuum.
Difference 3:
Velocity of sound in air is 340 m/s and that of light is 3 ×  10^{8} m/s.
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