Advertisements
Advertisements
Question
Fill in the blank and explain.
To discover a sunken ship or objects deep inside the sea, ______ technology is used.
Advertisements
Solution
To discover a sunken ship or objects deep inside the sea, SONAR technology is used.
Explanation:
The technology of SONAR (Sound navigation and ranging) is used to estimate the distance and location of underwater objects. A transmitter and a detector are fitted in a ship to do this.
APPEARS IN
RELATED QUESTIONS
A sonar device on a submarine sends out a signal and receives an echo 5 s later. Calculate the speed of sound in water if the distance of the object from the submarine is 3625 m.
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 unit used to measure the loudness of sound. Also write its symbol.
Name the characteristic which helps us distinguish between a man's voice and a woman's voice, even without seeing them.
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).
What type of scans are used these days to monitor the growth of developing baby in the uterus of the mother ?
What happens to the pitch of a sound if its frequency increases ?
What happens to the loudness of a sound if its amplitude decreases ?
Fill in the blank with suitable word :
Pitch of sound depends on ....................
What is meant by the 'loudness' of sound ? On what factor does the loudness 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 ?
Write any three applications (or uses) of ultrasound.
Name an animal which navigates and finds food by ecolocation.
Which of the two produces ultrasonic waves : porpoise or whale ?
In SONAR we use:
What type of waves are generated by SONAR device fixed to a fishing ship ?
Expand the abbreviation of the term SONAR.
