Class 7 Science MCQs - Chapter 24
Sound Waves Multiple Choice Questions (MCQ) PDF - 20
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Sound Waves Questions & Answers PDF Download: MCQ Quiz 20
MCQ 96: All musical instruments make
MCQ 97: The pitch of every note is a certain
MCQ 98: "Ultrasound" can
MCQ 99: The denser the solid, the
MCQ 100: The speed of sound in wood is
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