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Depends on the quality of the sound. The minimum distance to hear an echo will be partly based upon the observers ability to resolve different sounds (i.e. so that they can distinguish between the actual noise, and the arrival of the reflected sound - a little 100 year old lady may not be as good as a 15year old!). This will vary between observers, as their auditory reaction times vary
In the perfect Physics world though:
Assuming a sharp sound (like a gunshot) the minimum distance (d=vt) to hear distinct echo is 17.2m considering the speed of sound to be 344ms.
In general the "minimum echo distance" is always equal to half a wavelength from the reflector.
What else can I help you with?
In a stationary fluoroscopy machine the minimum distance acceptable between patient and fluoroscopy tube should be what?
The minimum source-to-skin distance distance for a fixed fluoroscopy unit is 15 inches. For a portable x-ray machine, the minimum distance is 12 inches.
What is a common name for the reflection of sound waves?
Echo.
What is an antonym of echo?
unreflected
What are the importance of echo?
· An echo is a reflection of sound waves when they hit upon any obstacle in their path. · This property of sound is employed by many animals,birds,insects and of course,humans.Bats are the most famous ones to use echo for catching food. · The property echo is extensively used by submarines and undersea explorations.
The bouncing of a sound wave off a surface?
The bouncing of a sound wave off a surface may result in an echo being heard.
What is the minimum distance required to produce a distinct echo in meter?
17.2m
What is the minimum distance of the obstacle from the source to hear an echo?
The minimum distance for an echo to be heard is approximately 17.2 meters (56.4 feet) from the source. This accounts for the time it takes for sound to travel to the obstacle and then reflect back to the source for the echo to be perceived.
What is the minimum distance of echo?
Depends on the quality of the sound. The minimum distance to hear an echo will be partly based upon the observers ability to resolve different sounds (i.e. so that they can distinguish between the actual noise, and the arrival of the reflected sound - a little 100 year old lady may not be as good as a 15year old!). This will vary between observers, as their auditory reaction times vary In the perfect Physics world though: Assuming a sharp sound (like a gunshot) the minimum distance (d=vt) to hear distinct echo is 17.2m considering the speed of sound to be 344ms. In general the "minimum echo distance" is always equal to half a wavelength from the reflector.
What is echo define and explain with examples?
Echo is a delay of sound - it comes at a slower rate and appears to echo. Often distance is a major factor of echo.
What two factors affect the clarity of an echo?
The distance between the listener and the reflecting surface, as well as the reflective properties of the surface, can affect the clarity of an echo. The further the distance and the more absorbent the surface, the less clear the echo will be.
How does loudness of an echo in echolocation affect distance?
To our knowledge, the amplitude of the echo isn't used in the determination ofthe range to the target. The amplitude depends on the size, shape, and surfacecomposition of the target, so it's not a reliable indicator of the distance. The distanceis determined primarily by measuring the time delaybefore the echo returns to thesource of the sound.
What is echo and its application?
echo is nothing but the reflection of sound and it is used to find the distance of certain places like mountains and buildings.
What is the minimum distance allowed near open trenches when travelling a crane and why?
The minimum distance is the depth of the excavation...
What is the formula to determine how far away is an object whose echo takes 9 seconds to return?
The formula to determine distance based on echo time is: Distance = (echo time * Speed of sound in air) / 2. Since sound travels at approximately 343 meters per second in air, if the echo takes 9 seconds to return, the distance from the object would be approximately 1543.5 meters away.
Why the echo of a sound made by us is not heard in small room?
In a small room, sound waves can quickly bounce off the walls, ceiling, and floor, leading to multiple reflections that can interfere with each other and cancel out the echo. This phenomenon is known as acoustic interference, which can dampen or eliminate the perception of an echo in a small space.
What is the minimum seconds of following distance?
When following large trucks, maintain at least a minimum of a ______ second following distance.
Is there a rule of distance of school from billiard halls?
In the US there is no minimum distance. However, a local municipality can require a minimum distance by local code or ordinance.
