Advertisements
Advertisements
Question
In SONAR we use:
Options
ultrasonic waves
infrasonic waves
radio waves
audible sound waves
Advertisements
Solution
ultrasonic waves
Ultrasonic waves are used in SONAR.
RELATED QUESTIONS
Explain how defects in a metal block can be detected using ultrasound.
A wave is moving in air with a velocity of 340 m/s. Calculate the wavelength if its frequency is 512 vibrations/sec.
What is the name of the device which is used to find the depth of sea (or ocean) by using ultrasonic sound waves ?
Write the full name of 'SONAR'.
What happens to the loudness of a sound if its amplitude decreases ?
Fill in the blank with suitable word :
Loudness of sound depends on .....................
Draw labelled diagrams to represent (a) soft sound, and (b) loud sound, of the same frequency.
Explain the term 'pitch' of a sound. On what factor does the 'pitch' of a sound depend ?
Draw labelled diagrams to represent sound of (a) low pitch, and (b) high pitch, of the same loudness.
Explain how, bats use ultrasound to catch the prey.
