The speed of sound and the speed of light are not the same. In fact, they are vastly different. The speed of light in a vacuum is approximately 299,792 kilometers per second (186,282 miles per second), whereas the speed of sound depends on the medium through which it travels.
In air at room temperature, sound travels at around 343 meters per second (767 miles per hour). So, in most everyday situations, light will reach our eyes much faster than sound reaches our ears.
When you see an event happening, such as a distant explosion, what you are perceiving is the light from that event reaching your eyes. Light travels at an extremely high speed, so it reaches you almost instantaneously over short distances, like the speed of light.
On the other hand, sound waves propagate through air or other media relatively slowly compared to light. Therefore, it takes some time for the sound waves to travel from the event to your ears. This delay is especially noticeable over long distances.
As a result, you often see the event before you hear it. The time difference between seeing and hearing an event can vary depending on the distance between you and the source of the event. However, in most cases, the speed of light is significantly faster than the speed of sound, allowing us to see things before we hear them.
It's worth noting that in certain situations, such as when an event happens very close to you, the time difference between seeing and hearing may be negligible or imperceptible.