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.
APPEARS IN
RELATED QUESTIONS
A wave is moving in air with a velocity of 340 m/s. Calculate the wavelength if its frequency is 512 vibrations/sec.
Name the characteristic which helps us distinguish between a man's voice and a woman's voice, even without seeing them.
What happens to the pitch of a sound if its frequency increases ?
What happens to the loudness of a sound if its amplitude decreases ?
Explain the term 'pitch' of a sound. On what factor does the 'pitch' of a sound depend ?
How is it that bats are able to fly at night without colliding with other objects ?
Explain how, bats use ultrasound to catch the prey.
What is the range of frequencies associated with (a) infrasound (b) audible sound, and (c) ultrasound ?
Name an animal which navigates and finds food by ecolocation.
The ultrasound waves can penetrate into matter to a large extent because they have :
