Echo of Sound MCQs Quiz Worksheet PDF Download

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Study high school courses, online physics degree programs MCQs: to communicate with each other, elephants use , for online courses with choices low frequency sound waves, low frequency light waves, high frequency sound waves, and low frequency heat waves with online job interview questions and answers for formative assessment in competitive exams. Free physics student portal for online learning echo of sound quiz questions, MCQs to find questions answers based online learning tests.

MCQs on Echo of Sound Quiz PDF Download

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: When sound is incident on surface of a medium it bounces back into first medium. phenomenon is called

  1. refraction of sound
  2. deflection of sound
  3. defraction of sound
  4. reflection of sound


MCQ: Total distance covered by sound from point of generation to reflecting surface and back should be at least

  1. 30 m
  2. 34 m
  3. 40 m
  4. 38 m


MCQ: For hearing distinct echoes, minimum distance of obstacle from source of sound must be

  1. double to this distance
  2. equal to this distance
  3. half of this distance
  4. one third to this distance


MCQ: Echoes may be heard more than once due to successive or multiple reflections

  1. deflections
  2. defractions
  3. refractions
  4. reflections