Class 8 Science MCQs - Chapter 12
Sound and Hearing Quiz Questions and Answers PDF - 7
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Sound and Hearing Questions & Answers PDF Download: MCQ Quiz 7
MCQ 31: Sounds which are below 20Hz frequencies are called
MCQ 32: A form of energy which is produced by vibrations and can be detected by ears is called
MCQ 33: Loudness is measured by
MCQ 34: Sound travels at speed of 5960m/s in
MCQ 35: The regions where molecules are compressed are called
Class 8 Science Mock Tests
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