Learn now what causes a sonic boom


A sonic boom is that continuous sound that you hear when an airplane is at or above the speed of sound. At the speed of sound the sound waves simply gather on top of each other right at the front of the plane and multiply their intensity hundreds and hundreds of times giving out that powerful sound.

Over the speed of sound the sound waves get dispersed a bit ahead and the rest in a cone shaped area behind the aircraft as it flies.

Michel van Biezen, from iLectureOnline, explains that the sonic boom is a byproduct of the Doppler effect. At the speed of sound the sound waves are in phase and many are on top of each other or superimposed.

So, a sonic boom shows up when the plane flies at or above the speed of sound.

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