Sound Multiple Choice Questions 17 PDF Download

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Physics multiple choice questions (MCQ) on if a doctor counts 80 heartbeats in 1 minute, then frequency of heartbeats should be with options 1.99 hz, 1.33 hz, 1.39 hz and 2.33 hz, sound waves in physics quiz for competitive exam prep, viva interview questions with answers key. Free physics study guide to learn sound waves in physics quiz to attempt multiple choice questions based test.

MCQs on Sound Quiz PDF Download Worksheets 17

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

  1. 1.33 Hz
  2. 1.99 Hz
  3. 1.39 Hz
  4. 2.33 Hz

A

MCQ. Intensity level of faintest audible sound is

  1. 25 dB
  2. 0 dB
  3. 10 dB
  4. 100 dB

B

MCQ. Stethoscopes operate on transmission of

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

D

MCQ. A safe level of noise depends on

  1. level of noise and exposure to noise
  2. area
  3. pitch
  4. frequency

A

MCQ. Ultrasonic waves are very useful for detecting

  1. large objects
  2. small objects
  3. gases
  4. none of the above

B