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It is a reflection of sound that arrives at the listener with a delay after the direct sound. You often observe this phenomenon in mountainous areas. What is it called?
  • a)
    Echo
  • b)
    Mirage
  • c)
    Decibel
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
It is a reflection of sound that arrives at the listener with a delay ...
Echo is distinct, reflected sound wave from a surface. Principle of echo is used in echo sounder to find the depth of a sea or the location of shoals of fish. It is a reflection of sound that arrives at the listener with a delay after the direct sound. A true echo is a single reflection of the sound source.
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It is a reflection of sound that arrives at the listener with a delay after the direct sound. You often observe this phenomenon in mountainous areas. What is it called?a)Echob)Miragec)Decibeld)None of theseCorrect answer is option 'A'. Can you explain this answer?
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