
Does sound travel faster than light?
Answer
429.3k+ views
Hint: Because the speeds of sound and light differ, you will always see lightning before hearing thunder. If the lightning is a mile or two distant, the difference in speed is noticeable to your brain. Sound is frequently composed of many superimposed waves of varying wavelengths. At some places, these constituent waves can constructively combine to generate a pulse that flows through the medium at a velocity known as the "group velocity."
Complete answer:
Light and sound are directly opposed. Sound is a mechanical disturbance that travels via air or another medium. Sound must always travel via a medium, and the type of medium influences its speed.
Consider a large number of molecules bouncing about in the air. If you hit an object or move quickly, the molecules you push will collide with those in front of them. This disturbance will move across the medium in the direction of travel of however you made the initial motion. Sound moves as a pressure wave in this manner.
In contrast, light is not a pressure wave. It is a fundamental particle. A photon is a single ray of light that causes an electromagnetic disturbance. Light does not require a medium to travel.
Sound travels at around meters per second via air. It travels quickly through water and much faster through steel. Light moves at million meters per second in a vacuum. So, they're on totally different scales.
Information can never travel, at the speed of light. Light can travel faster than that if it is passing through the media.
However, the speeds of sound and light are incomparable. Daily, you may not notice the difference in speed. This speed disparity is seen, for example, when lightning strikes. There will always be lighting before thunder. If the lightning is a mile or two miles distant, the difference in pace will be noticeable.
Note: Furthermore, William Robertson and colleagues from Middle Tennessee State University in the United States have created “faster than light” sound by passing a sound pulse through a remarkably simple waveguide. Inside, a loop filter divides the signal into two unequal length routes before recombining it to produce a considerable amount of anomalous dispersion. They mimic the shape of the initial pulse as they interfere with each other, only further ahead. This creates the illusion that the sound has traveled further, and thus faster, in the same amount of time.
Complete answer:
Light and sound are directly opposed. Sound is a mechanical disturbance that travels via air or another medium. Sound must always travel via a medium, and the type of medium influences its speed.
Consider a large number of molecules bouncing about in the air. If you hit an object or move quickly, the molecules you push will collide with those in front of them. This disturbance will move across the medium in the direction of travel of however you made the initial motion. Sound moves as a pressure wave in this manner.
In contrast, light is not a pressure wave. It is a fundamental particle. A photon is a single ray of light that causes an electromagnetic disturbance. Light does not require a medium to travel.
Sound travels at around
Information can never travel, at the speed of light. Light can travel faster than that if it is passing through the media.
However, the speeds of sound and light are incomparable. Daily, you may not notice the difference in speed. This speed disparity is seen, for example, when lightning strikes. There will always be lighting before thunder. If the lightning is a mile or two miles distant, the difference in pace will be noticeable.
Note: Furthermore, William Robertson and colleagues from Middle Tennessee State University in the United States have created “faster than light” sound by passing a sound pulse through a remarkably simple waveguide. Inside, a loop filter divides the signal into two unequal length routes before recombining it to produce a considerable amount of anomalous dispersion. They mimic the shape of the initial pulse as they interfere with each other, only further ahead. This creates the illusion that the sound has traveled further, and thus faster, in the same amount of time.
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