# What are Difference between Light and Sound Waves

Distinguish, differentiate, compare and explain what is the Difference between Light and Sound Waves. Comparison and Differences.

Sound Wave

A sound wave is a mechanical wave produced by a vibrating object. When the object vibrates, it causes the molecules around it to compress (come together) and expand (separate back out). This is called a longitudinal wave. This compression and expansion pattern travels through the medium (solid, liquid or gas) until it reaches your ear. Remember, sound cannot travel through empty space or a vacuum. Sound travels faster through solids than through liquids and gases.

Light Wave

Visible Light Waves: This is the only part of the electromagnetic spectrum that our eyes an see. Itâ€™s the kind of waves we are most familiar with, but in the grand scheme of the electromagnetic spectrum it is only a very narrow band of wavelengths, from about 0.35 micrometers to 0.9 micrometers.

## Difference between Light and Sound Waves

1. Light waves are electromagnetic waves. Sound waves are mechanical waves.

2. Light waves can travel in vacuum. Sound wave require a material medium for propagation.

3. The speed of light waves is very high propagation. (= 3 x 108 m/s in air). The speed of sound waves is low (=330 m/s in air)

4. The wavelength of the light waves. (visible) is very small, of the order of 10-6 m. The wavelength of sound waves is in the range of 10-2 m to 10m.

5. Light waves are transverse. Sound waves are longitudinal waves.

Transverse vs. Longitudinal Waves

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Difference between Sound Waves vs Light

Light vs Sound Waves

Differences between Sound Waves vs Light