Class 8 Science e-Book's MCQs - Complete
Pitch and Loudness MCQs App Free Download & e-Book - 233
Apps:
MCQ:
Humans can hear the sound within range
- 20Hz - 20000Hz
- 10Hz-10000Hz
- 200Hz-20000Hz
- 30Hz--30000Hz
a
Class 8 Science App & e-Book Tests PDF Download
Pitch and Loudness Learning App: Free Download Android & iOS
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