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Sound MCQ Questions and Answers 4 PDF Download eBook

Practice Sound Multiple Choice Questions and Answers PDF, sound MCQs questions PDF worksheets to solve 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. Solve sound and sound waves quiz questions for school certificate programs 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


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


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


MCQ: The speed of sound in air is

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


MCQ: The speed of sound can be found by relation

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