Advertisements
Advertisements
Question
What is ultrasound?
One Line Answer
Advertisements
Solution
Sounds of frequency above 20 kHz are called ultrasound.
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Which has the higher frequency - ultrasonic sound or infrasonic sound?
Complete the following sentence:
Ultrasound is of frequency ___________.
Name the sound of the frequency given below:
1000 Hz
Name the sound of the frequency given below:
40 kHz
Explain how do bats locate the obstacles and prey in their way.
An electromagnetic wave has a time period of 4 × 10-8 s. Calculate its frequency in MHz.
Ultraviolet radiation has a wavelength of 300Å. If the velocity of the electromagnetic wave is 3 × 108 ms-1. Calculate:
- frequency
- time period.
What does SONAR stand for?
State the main components of a hearing aid.
State the properties of ultrasound that make it useful.
