sound can be reflected from some surfaces as shown in the figure . what name is given to the sound that is reflected from a surface back to the listener ?how far should the listener stand from the surface ? [minimum distance]
Answers
Answer:
Explanation:
A sound which is reflected back to its original medium and when heared by the listener is called an echo.
To find the minimum distance first we will understand the meaning of sound wave and echo then we will use the concept of echo which is the most important condition for hearing an echo is that the reflected sound should only reach the ear after a lapse of at least 0.1 second after the original sound dies off.
i.e
the minimum distance is 17meters.
Answer: 17 meters
Explanation:
A sound which is reflected back to its original medium and when heared by the listener is called an echo.
To find the minimum distance first we will understand the meaning of sound wave and echo then we will use the concept of echo which is the most important condition for hearing an echo is that the reflected sound should only reach the ear after a lapse of at least 0.1 second after the original sound dies off.
Therefore, The minimum distance is 17 meters.
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