Chapter 12: Class 8 Science Exam Tests
Class 8 Science MCQs - Chapter 12
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MCQ 1: Louder sound can cause damage to
MCQ 2: The number of vibrations in a second is called
MCQ 3: Sound having frequencies above 20000Hz are called
MCQ 4: If we tighten the strings of instrument the pitch will be
MCQ 5: The higher the frequency the greater will be
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