What is the instrument to record the intensity of Earthquake?

Options

A. (a) Physiograph
B. (b) Seismograph
C. (c) Cardiograph
D. (d) Barograph

Answer

B

Explanation

A seismograph is an instrument used to detect and record earthquakes. Generally, it consists of a mass attached to a fixed base. During earthquake, the base moves but the mass does not move.