Sound Multiple Choice Questions and Answers 4 pdf eBooks Download

Learn sound MCQs, grade 10 physics test 4, echo of sound multiple choice questions and answers. Echo of sound revision test has physics worksheets, answer key with choices as low frequency light waves, low frequency sound waves, high frequency sound waves and low frequency heat waves of multiple choice questions (MCQ) with echo of sound quiz as to communicate with each other, elephants use for competitive exam prep, viva interview questions. Free physics study guide to practice echo of sound quiz to attempt multiple choice questions based test.

MCQs on Sound Quiz pdf Download Worksheets 4

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. 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. Speed of sound in air is

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

A

MCQ. Speed of sound can be found by relation

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

C