Class 10 Physics MCQs - Chapter 9

Sound Multiple Choice Questions (MCQs) PDF Download - 17

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Free Sound Multiple Choice Questions and Answers (MCQs), sound MCQ PDF Download, Book Test 9-17 to study class 10 physics online courses. Practice Sound Waves in Physics MCQs PDF, sound quiz questions and answers to study distance learning courses. The Sound MCQs App Download: Free learning app for sound waves in physics, characteristics of sound, noise pollution, ultrasound test prep for online degree programs.

The Multiple Choice Question (MCQ Quiz): If a doctor counts 80 heartbeats in 1 minute, then the frequency of heartbeats should be; "Sound" App Download (Free) with answers 1.99 hz, 1.33 hz, 1.39 hz and 2.33 hz to study distance learning courses. Solve sound waves in physics quiz questions, download Google eBook (Free Sample) for online classes.

Sound Questions & Answers PDF Download: MCQ Quiz 17

MCQ 81: If a doctor counts 80 heartbeats in 1 minute, then the frequency of heartbeats should be

1.33 Hz
1.99 Hz
1.39 Hz
2.33 Hz

MCQ 82: The intensity level of the faintest audible sound is

25 dB
0 dB
10 dB
100 dB

MCQ 83: Stethoscopes operate on the transmission of

electricity
signals
light
sound

MCQ 84: A safe level of noise depends on

level of noise and exposure to noise
area
pitch
frequency

MCQ 85: Ultrasonic waves are very useful for detecting

large objects
small objects
gases
none of above

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