State two difference between light waves and sound waves.

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Solution

The differences between sound waves and light waves are :
Sound waves
Light waves
Sound waves are mechanical waves.
They are longitudinal in nature.
The require medium for propagation.
Speed of sound waves is $300 m / s$ in air.
Light waves are electromagnetic waves.
They are transverse in nature.
They can travel in vacuum.
Speed of light waves in air is $3 \times 10^{8} m / s .$

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Sound waves	Light waves
Sound waves are mechanical waves. They are longitudinal in nature. The require medium for propagation. Speed of sound waves is $300 m / s$ in air.	Light waves are electromagnetic waves. They are transverse in nature. They can travel in vacuum. Speed of light waves in air is $3 \times 10^{8} m / s .$