Consider the following statements:
- 1. In a seismograph, P waves are recorded earlier than S waves.
- 2. In P waves, the individual particles vibrate to and fro in the direction of wave propagation whereas in S waves, the particles vibrate up and down at right angles to the direction of wave propagation.
Which of the statements given above is/are correct?
[amp_mcq option1=”1 only” option2=”2 only” option3=”Both 1 and 2″ option4=”Neither 1 nor 2″ correct=”option3″]
This question was previously asked in
UPSC IAS – 2023
Statement 2 is correct. P waves are longitudinal waves, meaning the particles of the medium vibrate back and forth in the direction of wave propagation. S waves are transverse waves, meaning the particles vibrate perpendicular (at right angles) to the direction of wave propagation.