Consider the following statements : 1. The Richter scale is a logarithmic scale and so an increase of 1 magnitude unit represents a factor of 10 in amplitude. 2. Each integer reading of the Richter scale has an energy 100 times than the previous integer reading. Which of the statement(s) given above is/are correct?

Consider the following statement about earthquake – 1. Intensity of earthquake is measured on Mercalli Scale. 2. Earthquake’s magnitude is the measurement of energy released. 3. Magnitude of earthqua…

Which of the following statements with reference to Richter scale is/are correct? 1. It is the intensity scale of an earthquake. 2. Richter indicates the amount of energy released during the earthqua…

Consider the following statements: 1. In a seismograph, P waves recorded earlier than S waves. 2. In P waves, the individual particles vibrate to and fro in the direction of wave propagation whereas…

Consider the following statements with reference to Secondary waves (S-Waves) generated during an earthquake : 1. They create troughs and crests in the material through which they pass. 2. The direct…

Consider the following statements about the types of drought in India: 1. A meteorological drought occurs when the mean annual rainfall is less than 75%. 2. Agricultural drought arises out of extreme…