हिंदी

Fill in the blank and explain. To discover a sunken ship or objects deep inside the sea, ______ technology is used. - Science and Technology

Advertisements
Advertisements

प्रश्न

Fill in the blank and explain.

To discover a sunken ship or objects deep inside the sea, ______ technology is used.

रिक्त स्थान भरें
Advertisements

उत्तर

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.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 12: Study of Sound - Exercise [पृष्ठ १३७]

APPEARS IN

बालभारती Science and Technology [English] 9 Standard Maharashtra State Board
अध्याय 12 Study of Sound
Exercise | Q 1. d. | पृष्ठ १३७

संबंधित प्रश्न

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?


How is ultrasound used for cleaning?


Explain the term 'amplitude' of a wave. Draw the diagram of a wave and mark its amplitude on it.


Define the 'frequency' and 'time-period' of a wave. What is the relation between the two?


Name the characteristic which helps us distinguish between a man's voice and a woman's voice, even without seeing them.


How does the pitch of a sound depend on frequency ?


What type of scans are used these days to monitor the growth of developing baby in the uterus of the mother ?


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 .....................


What is meant by the 'loudness' of sound ? On what factor does the loudness of a sound depend ?


Draw labelled diagrams to represent (a) soft sound, and (b) loud sound, of the same frequency.


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 ?


What is sonar ? Explain its use.


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 ?


Explain how does SONAR work?


The depth of an ocean can be determined by ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×