Comparison b/w recordings.
Classical Mechanics
Level
2
Earthquake at two places A and B were measured by a seismograph which recorded the magnitude as 2 and 4. The magnitude of tremors and its destructive energy at A and B can be compared as under:
Tremor at B are two times that at place A
Tremor at B are 1000 times that at place A
Tremor at B are four times that at place A
Tremor at B are 100 times that at place A
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1 solution
A seismograph uses a Richter scale to measure the magnitude of an earthquake. Richter scale is not a linear scale. It is a logarithmic scale. A difference in magnitude of '2' implies a multiplication factor of 100 .