which is faster speed of light or speed of sound

Light is much faster than sound. In air, sound travels about 343 meters per second, while light in a vacuum travels about 299,792,458 meters per second, so light is faster by a huge margin.

Quick Scoop

• Light wins by a lot.
• Sound needs a medium like air, water, or solid material to travel, while light can travel through a vacuum.

• That’s why you see lightning before you hear thunder.

Simple comparison

Thing| Speed
---|---
Light| about 299,792,458 m/s 23
Sound in air| about 343 m/s 23

Why it matters

This difference is so large that light is often treated as the fastest known speed in nature. Sound’s speed also changes depending on the medium, but it is still far slower than light.

TL;DR: Speed of light is faster than speed of sound by an enormous amount.