Q. 54.2( 16 Votes )

What is seismograph?

Answer :

The tremors produce waves on the surface of the earth. These are called seismic waves. The waves are recorded by an instrument called the seismograph the instrument is simply a vibrating rod, or a pendulum which starts vibrating when tremors occur. A pen is attached to the vibrating system. The pen records the seismic waves on a paper which moves under it. By studying these waves scientist can construct a complete map of the earthquake and they can also estimate the energy associate with the earthquake which determines is power to cause destruction.

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