Consider: I. In a seismograph, P waves are recorded earlier than S waves. II. In P waves, particles vibrate to and fro in the direction of wave propagation; in S waves, particles vibrate up and down at right angles to wave propagation. Which is/are correct?

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: I. Earthquake waves are basically of two types: body waves and surface waves. II. The body waves interact with the surface rocks and generate surface waves. Which is/are correct?

Which of the following statements with reference to shadow zones in an event of an earthquake is/are correct? 1. Zone between 105° and 145° from epicentre was identified as the shadow zone for both P…

Consider statements regarding extratropical cyclones: I. They usually develop in the mid and high latitudes. II. They affect a much larger area as compared to tropical cyclone. II. They move from eas…