Class 10 Courses

Chapter 9: Class 10 Physics Exam Tests

Class 10 Physics MCQs - Chapter 9

Sound Multiple Choice Questions (MCQs) PDF Download - 21

The Sound Multiple Choice Questions (MCQs) with Answers PDF (sound MCQs PDF e-Book) download Ch. 9-21 to study Grade 10 Physics Course. Learn Sound Quiz Questions and Answers to learn online certification courses. The Sound MCQs App Download: Free learning app for characteristics of sound, noise pollution, sound waves in physics, echo of sound test prep for online teaching certification programs.

The MCQ: A normal conversation have sound intensities of 3×10-6Wm-2. The decibel level for the intensity is; "Sound" App Download (Free) with answers: 64.8 dB; 50 dB; 70.5 dB; 48.8 dB; to learn online certification courses. Solve Characteristics of Sound MCQ Questions, download Google eBook (Free Sample) for distance learning classes.

Sound MCQs with Answers PDF Download: Quiz 21

MCQ 101:

A normal conversation have sound intensities of 3×10-6Wm-2. The decibel level for the intensity is

  1. 50 dB
  2. 64.8 dB
  3. 70.5 dB
  4. 48.8 dB
MCQ 102:

The level of noise recommended in most countries over an eight-hour workday is usually

  1. 65-70 dB
  2. 85-90 dB
  3. 75-80 dB
  4. 45-50 dB
MCQ 103:

If a nurse counts 68 heartbeats in 1 minute, then the period of heartbeats should be

  1. 1.9 s
  2. 2 s
  3. 0.88 s
  4. 3 s
MCQ 104:

Human voice results from the vibration of

  1. ears
  2. heart
  3. vocal chords
  4. muscles
MCQ 105:

As compare to air, sound waves travel

  1. 3 times faster
  2. 5 times slower
  3. 5 times faster
  4. 2 times lower

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Sound App (Android & iOS)

Sound App (Android & iOS)

10th Grade Physics App (Android & iOS)

10th Grade Physics App (iOS & Android)

SAT Physics App (Android & iOS)

SAT Physics App (Android & iOS)

O Level Physics App (Android & iOS)

O Level Physics App (iOS & Android)