Class 10 Physics MCQs: Chapter 9

Sound Quiz Questions & Answers PDF Download - 23

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The Sound Quiz Questions and Answers PDF (Sound Quiz PDF e-Book) download Ch. 9-23 to learn Class 10 Physics Course. Solve Importance of Acoustics MCQs PDF, Sound Quiz Questions and Answers for high school certification courses. The Sound Quiz App Download: Free Class 10 Physics App to learn importance of acoustics, ultrasound test prep for online classes.

The Quiz: Multiple reflections are called "Sound" App (iOS, Android) with answers: refraction, reverberations, echo, and compressions for high school certification courses. Study Importance of Acoustics MCQ Questions, download Google Book (Free Sample) for free online courses.

Sound Exam Questions and Answers PDF Download: Test 23

MCQ: 111

Multiple reflections are called

reverberations
refraction
echo
compressions

MCQ: 112

SONAR ranging is also used to see the object's

shape only
size only
width
shape and size

MCQ: 113

The wavelength of ultrasonic waves is

very small
very large
zero
negative

MCQ: 114

The frequency range for ultrasound is

20,000 Hz above
less than 20,000 Hz
25,000 Hz
less than 20Hz

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