Sound and light are two different types of waves that propagate through different mediums, and their speeds of propagation are not directly related to each other.
Sound waves are mechanical waves that require a medium, such as air, water, or solids, to travel through. When a sound is produced, it creates a series of compressions and rarefactions in the medium. These compressions and rarefactions are what we perceive as sound. The speed of sound depends on the properties of the medium through which it travels, such as its density and elasticity. In air at room temperature, sound travels at approximately 343 meters per second (or about 767 miles per hour).
On the other hand, light is an electromagnetic wave that does not require a medium to propagate. It can travel through a vacuum, such as outer space. The speed of light in a vacuum is approximately 299,792,458 meters per second (or about 671 million miles per hour). In different materials, such as air, water, or glass, light travels at slightly slower speeds due to interactions with the atoms or molecules in the medium.
When a sound wave reaches our ear, it causes the eardrum to vibrate. These vibrations are then transmitted through the tiny bones of the middle ear to the inner ear, where they are converted into electrical signals that are sent to the brain. The brain interprets these electrical signals as sound, allowing us to perceive it.
Since sound travels more slowly than light, we typically hear sound before we see corresponding visual stimuli. For example, if you observe a distant explosion, you may see the flash of light immediately, but it will take some time for the sound to reach your ears, resulting in a delay between seeing the flash and hearing the sound.
In summary, sound and light are distinct phenomena that propagate at different speeds. Sound requires a medium to travel and travels at a slower speed than light, which can propagate through a vacuum. When sound reaches our ears, it causes vibrations that are converted into electrical signals, allowing us to hear the sound.