Question

What do uh mean by seismograph??

Answer 1

hey mate...

The instrument used to measure seismic waves is know as seismograph.

hope it helpz uh

Answer 2

$\huge{\mathfrak{Answer}}$

$<font color="pink"><i>$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.
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$<font color="red"><b>$$<marquee>$Thanks✊..