Consider the following statements :
I. In a seismograph, P waves are recorded earlier than S waves.
II. 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?
- A.I only
- B.II only
- C.Both I and II
- D.Neither I nor II
Show answer
P waves are the fastest earthquake waves and reach a seismograph first, and they are longitudinal, while S waves are transverse.
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