Question

The amplitude of vibrations measured on the Richter’s Scale increase by steps of about
$
  A.\,\,10 \\
  B.\,\,20 \\
  C.\,\,30 \\
  D.\,\,40 \\
 $

Answer 1

Hint: In the question, Richter’s Scale is used to measure the amplitude of vibrations. Generally, Richter’s Scale is used for the amplitude of earthquakes. Amplitude of the wave is calculated by using a seismograph.

Complete step by step answer:
Richter’s scale is used to measure the vibration of the earthquake’s magnitude. The earthquake’s magnitude is evaluated using the logarithm of the height of the largest seismic wave which means called amplitude. It is calculated by the scale tool of a seismograph. Nowadays, modern Richter scales are replaced by the old Richter scale. Modern Scale calibrated more accurate scales.
Richter scales are used enormously in news reports for knowing the severity or magnitude of the earthquake. It is measured by the logarithmic scale upon which the earthquakes are measured.
In the Richter scales, adjustments are included in the equation of magnitude to equate the variations in the distance between the various seismographs and epicenter of the earthquakes.
For example, a magnitude of $5.2$ might be calculated for the level of the moderate earthquake, and a high level of an earthquake might be expressed as $6.2$. Due to the logarithmic basis of the scale, each of the numbers rises in magnitude it indicates a tenfold rise in measured amplitude.
Therefore, from the above options, option A is correct.

Note: In the Richter’s scale amplitude of an estimation of energy, each whole number steps is related to the release of about $31$ times more energy than the total amount of energy. In the amplitude, the difference between the two energies is increased by the Richter’s Scale.