WBCS.LIVE practice question

A sound wave consists of:

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

Answer options

  1. a number of rarefaction pulses one after the other.
  2. a compression pulse and a rarefaction pulse separated by a distance of one wavelength.
  3. a number of compression pulses one after the other.
  4. compression and rarefaction pulses one after the other.

Correct answer and explanation

Correct answer: compression and rarefaction pulses one after the other.