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  9. Q67

TNPSC Group-I 2017 · Question 67 of 71

Identify the incorrect statement in respect of seismic waves:

Geography

  1. APrimary waves pass through liquid and solid
  2. BPrimary waves are highly destructiveCorrect
  3. CSecondary waves cannot pass through liquid
  4. DSurface waves are long waves

Answer: B. Primary waves are highly destructive

Explanation

P-waves are fastest but least destructive; S-waves and surface waves cause the damage.

Source: TNPSC Group-I Prelims 2017 (GS1902) - Official Question Paper (scribd OCR, tick-marked answers)

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