Question

what is the meaning of validity in physics​

Answer 1

Explanation:

Validity is the extent to which a concept, conclusion or measurement is well-founded and likely corresponds accurately to the real world. The word "valid" is derived from the Latin validus, meaning strong.

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Answer 2

Answer:

In its purest sense

In its purest sense, this refers to how well a scientific test or piece of research actually measures what it sets out to, or how well it reflects the reality it claims to represent.