Chapter 23: Class 7 Science Exam Tests
Class 7 Science MCQs - 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; Wavelength; to learn distance learning courses. Solve Volume and Amplitude MCQ Questions, download Google eBook (Free Sample) 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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