| The Primary waves of earthquake also called as longitudinal or compressional waves or simple 'P' waves, are analogous to sound waves where in the particles move to and fro in the line of propagation of the ray. P waves |
| (1) Travels fastest through solid materials |
| (2) It cannot pass through liquid materials |
| (3) These waves cover the longest distance of all the seismic waves. Which of the statements given above with regard to 'P' waves is/ are correct? |
A) 1 only
B) 3 only
C) 1 and 2 only
D) 1, 2 and 3
Correct Answer: A
Solution :
[a] In earthquakes the primary or 'P' waves are compressional waves that travel longitudinally. They are the fastest and hence first to be detected at surface, they can pass through both the mediums of solid and liquid. They are followed by secondary or 'S' waves.
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