Question

Which waves cannot pass through liquid materials?

a.Primary waves. b.Secondary waves. c.Surface waves. d.All of the above.
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Answer 1

Option A - Primary waves cannot pass through liquid materials.

Why primary waves cannot pass through liquid material?

• The liquid state starts at 2900 km in the earth layers and the velocity of primary waves increases accordingly when the liquid state starts.
  
  
• The velocity of P waves is around 12 Km/sec.
  
  
• However, when they enter a liquid state, the velocity reduces to 8 km/sec. That's why they cannot pass through the liquid material.

Thus, option A is correct.

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