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Assertion (A): Van der Meer gives separate formulae for plunging and surging waves.
Reason (R): The dominant failure mechanism differs between the two breaker types.

  • A.Both A and R are true, and R is the correct explanation of A
  • B.Both A and R are true, but R is not the correct explanation of A
  • C.A is true but R is false
  • D.A is false but R is true

Answer: A

Both are true and the reason gives the reason for the distinction, and the surf similarity parameter decides which applies. A transition value separates the two regimes. Slope and steepness together decide which applies.

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