Class 10 Physics MCQs - Chapter 9
Sound Multiple Choice Questions (MCQ) PDF - 4
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Sound Questions & Answers PDF Download: MCQ Quiz 4
MCQ 16: To communicate with each other, Elephants use
MCQ 17: The technique or method to absorb undesirable sounds by soft and porous surface is called
MCQ 18: A normal human ear can hear a sound only if its frequency lies between
MCQ 19: The speed of sound in air is
MCQ 20: The speed of sound can be found by relation
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