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Assertion (A): Adding more booms to an idealisation always improves the answer materially.

Reason (R): More booms follow the real distribution of material more closely.

Select the correct answer from the options below.

  • 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 false but R is true
  • D.A is true but R is false

Answer: D

The reason is true, but the assertion overstates it. Once convergence has been reached, further refinement changes the answer negligibly while costing more work. Demonstrating that the change has become small is the point at which refinement should stop.

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