Answer» Correct Answer - Option 1 : Seismograph
The correct answer is Seismograph. - A seismograph is an instrument that measures earthquakes.
- It has sensors that translate ground motion into electrical signals which are processed and recorded by the device.
- An earthquake is a sudden shaking or trembling of the earth which lasts for a very short time.
- It is caused by a disturbance deep inside the earth’s crust.
- The major cause of earthquake:
- The outermost layer of the earth is not in one piece.
- It is fragmented and Each fragment is called a plate.
- These plates are in continual motion.
- When they brush past one another, or a plate goes under another due to collision they cause a disturbance in the earth’s crust.
- A barometer is an instrument that measures Atmospheric Pressure.
- A manometer is a device that measures air pressure using a container with a "U"-shaped tube open at one or both ends.
- Ammeter is an instrument that measures Current.
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