Question

As compared to audible sound, ultrasonic waves have:

• A. Higher frequency
• B. Higher energy
• C. Smaller wavelength
• D. Higher speed

Answer 1

Answer: (A), (B), (C)

The correct options are
A Higher frequency
B Higher energy
C Smaller wavelength

Some properties of ultrasonic waves are:

1. They have frequency more than 20 kHz which is higher than the audible range.
2. For waves, energy increases with frequency and hence, ultrasonic sound have higher energy than audible sound.
3. Also, speed for a wave is decided by the medium and is same for both ultrasonic and audible range.
4. Ultrasonic waves have smaller wavelength as compared to the audible range.