WBCS.LIVE practice question

A sound wave of frequency of 2 kHz has a wavelength of 35 cm in a given medium. How long will it take to travel a distance of 2.1 km through the medium?

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

Answer options

  1. 30 s
  2. 2.1 s
  3. 3.0 s
  4. 4.1 s

Correct answer and explanation

Correct answer: 3.0 s