Ultrasonido: sonidos más allá del umbral de audición humana

Ultrasound, with a frequency above 20,000 Hz, is used in medicine for imaging and in industry for detecting defects. In nature, animals like bats and dolphins use ultrasound for navigation and communication.

What is the maximum frequency the human ear can typically hear?

• 20,000 Hz

• 15,000 Hz

• 10,000 Hz

• 25,000 Hz

Which of the following is a medical application of ultrasound?

• Measuring air pollution

• Generating images of the human body

• Tracking weather patterns

• Detecting underwater mines

In which industry is ultrasound used to detect defects in solid structures?

• Textile

• Automobile

• Construction

• Food

Which animals are known to use ultrasound for navigation?

• Cats and dogs

• Bats and dolphins

• Lions and tigers

• Elephants and rhinos

How do dolphins primarily use ultrasound?

• To hunt prey

• To navigate and communicate

• To build nests

• To find mates