(1) In nondestructive testing, a discontinuity may be defined as an interruption in the normal physical structure or configuration of a part.(2) A discontinuity may or may not affect the usefullness of a part. Which statement(s) are true?

BOTH ARE TRUE

Explanation: Nondestructive testing or Evaluation is a term used in the field of science and technology to describe the evaluations, analysis or testing carried out on components of materials without destroying any part or components of the test materials. It is very useful in scientific research or industrial engineering environments. When any disruption of physical structure or configuration of a component will lead to discontinuing of the test, and it may not affect the usefulness of the affected parts.

a person with a mass of 106kg has a weight of 1060n