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Two sounds that differ in frequency are ...

Two sounds that differ in frequency are emitted from a single loudspeaker. Which sound will reach your ear first, the one with the lower or the one with higher frequency ?

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They arrive at the same time because speed of sound does not depend on frequency (i.e., sound is not dispersive).
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PRADEEP-SOUND-Mock Test (Sec - A)
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  18. Explain briefly the structure of human ear from auditory aspect only.

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  19. What are multiple echoes ? Give two of their practical applications.

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