Multiple choice general knowledge science & technology

The intensity of earth quake is measured in

  1. Barometer

  2. Hydrometer

  3. Polygraph

  4. Seismograph
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A seismograph is the instrument that measures and records earthquake intensity and ground motion. It detects seismic waves and creates a seismogram showing wave amplitude and frequency. Unlike a barometer (atmospheric pressure) or hydrometer (liquid density), the seismograph specifically captures earthquake vibrations.

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