Class 7 Science MCQs (Grade 7) From Textbook
Class 7 Science MCQs App | Sound Waves e-Book PDF Download
Class 7 Science Competitive Exam MCQs – Practice Test 29 (Chapter 23)
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The MCQ: The loudness of sound depends on; "Sound Waves" App Download [Free] with answers: frequency, wave front, amplitude, and wavelength to learn distance learning courses. Solve Volume and Amplitude MCQ Questions, download Google e-Book (Free Chapter) for online courses.
The loudness of sound depends on
Bats also use 'ultrasound' to prevent
The louder the sound is, the more the amplitude it
The full name of ultrasound is
The melting of a metal with the help of ultrasounds is known as
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