Advertisements
Advertisements
Question
What is the name of the device which is used to find the depth of sea (or ocean) by using ultrasonic sound waves ?
Solution
Sonar is a device used to find the depth of a sea through ultrasonic sound waves.
APPEARS IN
RELATED QUESTIONS
A submarine emits a sonar pulse, which returns from an underwater cliff in 1.02 s. If the speed of sound in salt water is 1531 m/s, how far away is the cliff?
Explain how defects in a metal block can be detected using ultrasound.
How does the pitch of a sound depend on frequency ?
Name the characteristic of sound which can distinguish between the 'notes' (musical sounds) played on a flute and a sitar (both the notes having the same pitch and loudness).
How is an ultrasound scan for fetus (unborn baby) better than X-ray ?
Fill in the blank with suitable word :
Pitch of sound depends on ....................
Explain the term 'pitch' of a sound. On what factor does the 'pitch' of a sound depend ?
Which of the two produces ultrasonic waves : porpoise or whale ?
A sonar station picks up a return signal after 3 seconds. How far away is the object ? (Speed of sound in water = 1440 m/s).
What type of waves are generated by SONAR device fixed to a fishing ship ?
