WBCS.LIVE practice question

Which of the following statements is NOT correct regarding sound?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Unpleasant sounds are called noise
  2. Frequency is expressed in hertz
  3. Sound can travel through vacuum
  4. In human beings, the vibration of vocal cords produce sound

Correct answer and explanation

Correct answer: Sound can travel through vacuum