Question

what is a seismograph

Answer 1

Answer:

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A seismograph, or seismometer, is an instrument used to detect and record earthquakes. Generally, it consists of a mass attached to a fixed base. During an earthquake, the base moves and the mass does not. ... Seismograph generally refers to the seismometer and its recording device as a single unit.

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Answer 2

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An instrument which detects and records the intensity of seismic waves generated by an earthquake is called seismograph. The shock waves travel in all directions through the earth and also reach the earth's surface. A seismograph detects the shock waves produced by the earthquake and records them on the paper in the form of graph. This instrument is simply a vibrating pendulum.

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$\huge\dag\sf\orange{By \: Divyanshu}$