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Sound Waves and Echoes Questions and Answers PDF Download eBook

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MCQs on Sound Waves and Echoes PDF Download eBook

MCQ: As compare to humans, bats can hear sounds only with

  1. low frequency
  2. low pitch
  3. low amplitude
  4. high pitch


MCQ: The use of echo to measure distance is known as

  1. echo destination
  2. echolocation
  3. echo displacement
  4. echo dictation


MCQ: Some fishing boats use echo to

  1. calculate the depth of water
  2. detect any predator
  3. detect shoal of fish
  4. eggs of fish


MCQ: Ships send a small

  1. pulse to the sea bed
  2. vibration to the tower
  3. piece of food to fish
  4. beam of sound to check the depth


MCQ: The longer, the echo takes, the

  1. shallower the water
  2. the deeper the water
  3. the denser the water
  4. the warmer the water