Sound produced by jet planes

In summary, the conversation discusses the concept of interference and the effects of two jet planes producing 130 db sound. The question is raised about the level of loudness heard by a person standing nearby, and the possibility of using the concept of interference in this problem is mentioned. However, due to lack of information, this cannot be applied. The conversation also mentions the logarithmic scale of intensity and how putting two planes together affects the decibel reading.
  • #1
kanha
1
0
please reply me
i have a doubt. if two jet planes are flying together each producing 130 db sound. then what is the level of loudness heared by a person standing there. no other parameters are known. I have two concepts in mind ie) 1. every fundamental frequency produce hormonics and when two similar sin waves travel together they form a single sin wave. 120 db sound is threshold of pain.i don't know whether this concept is useful or some another concept is there please explan it.
thanks in advance
 
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  • #2
two similar sin waves travel together they form a single sin wave

What you are talking about is interference. Due to lack of information you can't really use that in this problem.

Decibels is the logarithmic scale of intensity. If you put two planes together (ignoring interference) the intensity at any point will double. How will that affect the decibel reading?

Hint: The dB reading doesn't double.
 

What causes the loud sound produced by jet planes?

The loud sound produced by jet planes is caused by the rapid movement of air molecules as the plane travels at high speeds. This creates sound waves that are perceived as loud noise.

Why is the sound produced by jet planes so much louder than other types of planes?

Jet planes produce a much louder sound compared to other types of planes because they have powerful engines that can reach supersonic speeds, creating shock waves that contribute to the loud noise.

Is the loud sound from jet planes harmful to human hearing?

The loud sound produced by jet planes can potentially be harmful to human hearing if a person is exposed to it for an extended period of time. However, most airports have regulations in place to limit the amount of exposure to loud noises from jet planes for both passengers and airport personnel.

How does the design of a jet plane affect the sound it produces?

The design of a jet plane, specifically the shape and size of the engine, can greatly impact the sound it produces. Newer jet planes are designed to have quieter engines, using technologies such as noise-cancelling systems and sound-absorbing materials to reduce the loud noise.

What measures are being taken to reduce the loud sound produced by jet planes?

Airports and aircraft manufacturers are constantly working to reduce the noise levels of jet planes. This includes implementing noise-reducing technologies, creating flight paths that minimize noise pollution, and developing quieter engines and aircraft designs.

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