WBCS.LIVE practice question

What is the frequency range of ultrasonic waves, which are used in sonar and medical imaging?

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

Answer options

  1. Above 20,000 Hz
  2. Below 20 Hz
  3. Between 20 Hz and 20,000 Hz
  4. Exactly 10,000 Hz

Correct answer and explanation

Correct answer: Above 20,000 Hz

Explanation: āœ… Correct Answer: A) Above 20,000 Hz šŸ“š Explanation: Ultrasonic waves are sound waves with frequencies higher than the upper audible limit of human hearing, which is 20,000 Hz. Animals like bats and dolphins use these waves for navigation and hunting through a process called echolocation. In modern medicine, ultrasound technology utilizes these high-frequency waves to visualize internal organs and developing fetuses.