3) what is mean by seismograph.

1.	3) what is mean by seismograph.
Answer» Answer: 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. The motion of the base with respect to the mass is commonly transformed into an electrical voltage. Explanation: Seismographs are instruments used to record the motion of the ground during an earthquake. They are installed in the ground throughout the WORLD and operated as PART of a seismographic network. The earliest "seismoscope" was invented by the Chinese philosopher Chang Heng in A.D. 132.

Answer»

Answer:

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. The motion of the base with respect to the mass is commonly transformed into an electrical voltage.

Explanation:

Seismographs are instruments used to record the motion of the ground during an earthquake. They are installed in the ground throughout the WORLD and operated as PART of a seismographic network. The earliest "seismoscope" was invented by the Chinese philosopher Chang Heng in A.D. 132.

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