Chapter 9: Class 10 Physics Exam Tests
Class 10 Physics MCQs - Chapter 9
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MCQ 6: Sounds of frequency higher than 20,000 Hz which are inaudible to normal human ear are called
MCQ 7: The loudness and amplitude of sound varies
MCQ 8: The speed of sound varies with
MCQ 9: The scale to measure the intensity level of sound is called
MCQ 10: To find the speed of sound, we use the relation
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