What are the key differences between light and sound?

By Forinfos - 10/04/2026 - 0 comments

The most significant difference between light and sound is that light is a transverse wave while sound is a longitudinal wave. As a transverse wave, light is capable of traveling in a vacuum, which is how the light from the sun is able to reach the earth.

Sound waves, unlike light waves, can only travel through a solid, liquid, or gas, which is why space is quiet. Another key difference between light and sound is that light moves at a faster speed than sound. According to NASA, the speed of sound is approximately 300 meters per second. However, light travels at a far quicker speed of 300,000,000 meters per second.

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