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Sound MCQ Questions and Answers 4 PDF Download eBook

Sound Multiple Choice Questions and Answers (MCQs), sound MCQs questions PDF to practice grade 10 physics test 4 for online school programs. Practice "Sound and Sound Waves" MCQs, sound quiz questions and answers for online education. Learn echo of sound, importance of acoustics, audible range of human ear, speed of sound test prep for free online courses.

"To communicate with each other, Elephants use" Multiple Choice Questions (MCQ) on sound with choices low frequency light waves, low frequency sound waves, high frequency sound waves, and low frequency heat waves for online education. Free physics study guide for online learning sound and sound waves quiz questions for online degrees.

Sound MCQs Quiz 4 PDF Download eBook

MCQ: To communicate with each other, Elephants use

  1. low frequency sound waves
  2. low frequency light waves
  3. high frequency sound waves
  4. low frequency heat waves

A

MCQ: The technique or method to absorb undesirable sounds by soft and porous surface is called

  1. acoustic protection
  2. unacoustic protection
  3. audible protection
  4. decibel protection

A

MCQ: A normal human ear can hear a sound only if its frequency lies between

  1. 30 Hz to 30,000 Hz
  2. 50 Hz to 50,000 Hz
  3. 20 Hz to 20,000 Hz
  4. 10 Hz to 10,000 Hz

C

MCQ: The speed of sound in air is

  1. 343ms-1
  2. 343ms-2
  3. 341ms-1
  4. 250ms-1

A

MCQ: The speed of sound can be found by relation

  1. v = cλ
  2. v = ma
  3. v = fλ
  4. f=1T

C