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The Sound waves in physics Multiple Choice Questions (MCQ Quiz) with Answers PDF (Sound Waves in Physics MCQ PDF e-Book) download to practice Grade 10 Physics Tests. Study Sound Multiple Choice Questions and Answers (MCQs), Sound Waves in Physics quiz answers PDF for online certificate programs. The Sound Waves in Physics MCQ App Download: Free learning app for reflection (echo), characteristics of sound, physics: sound waves, sound and sound waves test prep for distance learning classes.

The MCQ: In a market, the intensity level of sound recorded is 80 dB, the intensity level of sound should be; "Sound Waves in Physics" App Download (Free) with answers: 10-4Wm-2; 10-6Wm-2; 10-8Wm-2; 10-5Wm-2; for online certificate programs. Solve Sound Quiz Questions, download Apple eBook (Free Sample) for school certificate.

## Sound Waves in Physics MCQs: Questions and Answers

MCQ 1:

Humans can hear sound up to the highest frequency of 20,000 Hz. If the wavelength of sound in air at this frequency at a temperature of 20° would be

1. 5.7×10-2
2. 3.7×10-2
3. 1.7×10-2
4. 2.7×10-2
MCQ 2:

In a market, the intensity level of sound recorded is 80 dB, the intensity level of sound should be

1. 10-4Wm-2
2. 10-6Wm-2
3. 10-8Wm-2
4. 10-5Wm-2
MCQ 3:

If a normal conversation have sound intensities of 3×10-6Wm-2. The intensity of sound for 100dB would be

1. 0.05 Wm-2
2. 0.01 Wm-2
3. 0.08 Wm-2
4. 0.68 Wm-2
MCQ 4:

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

1. 1.33 Hz
2. 1.99 Hz
3. 1.39 Hz
4. 2.33 Hz
MCQ 5:

Stethoscopes operate on the transmission of

1. electricity
2. signals
3. light
4. sound

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