26june2019 paper1 Q39
- Option : A
- Explanation : Because of the logarithmic basis of the scale, each whole number increase in magnitude represents a tenfold increase in measured amplitude. On the other way, one unit of magnitude is 10 times the amplitude on a seismogram, one unit of magnitude represents 101.5 times (approximately 32 times) the energy, based on the long-standing empirical formula; log Eα( 1.5M where E is energy and M is magnitude. Hence in the given question, the energy released in 'B' is three times that of' N is a wrong statement.
