Fill in the following blanks with suitable words:
(a) An echo is simply a ............. sound.
(b) Pitch of sound depends on ................
(c) Loudness of sound depends on .............
(d) Quality of sound depends on ................
(e) Echoes are caused by the ............. of sound.

(a) An echo is simply a reflected sound.  

(b) Pitch of sound depends on frequency.  

(c) Loudness of sound depends on amplitude.

(d) Quality of sound depends on the waveform.  

(e) Echoes are caused by the reflection of sound.

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Updated on: 10-Oct-2022

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