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Class 7 Science Competitive Exam MCQs – Practice Test 29 (Chapter 23)
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Learn Sound waves Multiple Choice Questions (MCQs) with Answers PDF to explore virtual science content. Download the Sound Waves MCQs PDF e-Book, Ch. 23-29 to study Class 7 Science Course. Learn Sound Waves Quiz Questions and Answers for science student development tools. Free Sound Waves Study App Download: Class 7 Science MCQs App to volume and amplitude, sound waves and echoes, ultrasound test prep to strengthen science performance online.
Download "Sound Waves Study" App: Loudness of sound depends on; MCQ with answers: frequency, wave front, amplitude, and wavelength. Solve Volume and Amplitude MCQ Questions, download Google e-Book (Free Chapter) to explore virtual science content.
MCQ 141: The loudness of sound depends on:
MCQ 142: Bats also use 'ultrasound' to prevent:
MCQ 143: The louder the sound is, the more the amplitude it:
MCQ 144: The full name of ultrasound is:
MCQ 145: The melting of a metal with the help of ultrasounds is known as:
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