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Q.

Which instrument is used to measure the depth of the ocean?


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a

Galvanometer

b

Flux-meter

c

Endoscope

d

Fathometer 

answer is D.

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Detailed Solution

Concept: A galvanometer is a device that is used to measure electric current. Magnetic flux is measured with a flux-meter. Endoscopes are used to inspect the body's interior organs. On our globe, there are both natural and man-made items.
An ammeter was used to measure current and a thermometer was used to measure any temperature. Similarly, many things must be measured in order to be tracked and reports to be monitored. To guarantee that disasters are prevented, disaster management routinely considers the level of the water and oceans. They do so in a number of methods and with the use of measurement equipment.
The Fathometer is an example of a device that is used to determine ocean depths. In 1925, the Boston submarine signal company invented the Fathometer, also known as 312 fathometers. Because it supplied more precise data than other sounding methods, determining the depth of the water became easier.
A Fathometer is a device used to measure the depth of water beneath a boat or ship. It's a device that creates echoes. It fires sound waves into the water and counts how long it takes them to travel from near the surface to the bottom and back.
Hence, the correct option is 4.
 
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