Class 10 Physics MCQs - Chapter 9

Sound Quiz Questions and Answers PDF - 23

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Sound Questions & Answers PDF Download: MCQ Quiz 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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