Echo of Sound MCQs & Quiz Online PDF Book Download

Echo of sound MCQs, echo of sound quiz answers for online high school courses. Sound multiple choice questions (MCQs), echo of sound quiz questions and answers for online school degrees. Noise pollution, characteristics of sound, sound and sound waves, sound waves in physics, echo of sound test prep for high school teacher certification.

Learn physics MCQs: to communicate with each other, elephants use, with choices low frequency sound waves, low frequency light waves, high frequency sound waves, and low frequency heat waves for online school degrees. Free physics student portal for online learning echo of sound quiz questions, MCQs to find questions answers based online learning tests.

MCQ on Echo of Sound PDF Book 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

A

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

D

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

B

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

C

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

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

D