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Byju's Answer
Standard VII
Physics
Echo
Echo is the s...
Question
Echo is the sound heard after reflecting from a distant obstacle.
A
True
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B
False
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Solution
The correct option is
A
True
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Q.
The echo will be heard if the orginal sound reflected by an obstacle reaches our ears after
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The sound heard after reflection from a rigid surface is called echo.
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An echo will be heard if the minimum distance between the source of sound and obstacle is?
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Velocity of sound changes after reflecting from an obstacle.
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