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Seismic waves and tsunami - class-IX

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Multiple Choice

Assertion : An earthquake will not cause uniform damage to all building in an affected area, even if they are built with the same strength and materials.
Reason : The one with its natural frequency close to the frequency of seismic wave is likely to be damaged less.

  1. If both assertion and reason are true and reason is the correct explanation of assertion.
  2. If both assertion and reason are true and reason is not the correct explanation of assertion.
  3. If assertion is true but reason is false.
  4. If both assertion and reason are false.
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