Assertion (A): Absolute error in physical quantity can be positive, negative or zero. Reason (R): Absolute error is the difference in measured value and true value of physical quantity. Choose the correct option:
A
Both A and R are true and R is the correct explanation of A.
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B
Both A and R are true and R is not the correct explanation of A.
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C
A is true but R is false.
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D
A is false but R is true.
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Solution
The correct option is DA is false but R is true. Absolute error = ∣Measured value- Actual value∣. It is always positive. Hence, option (d) is the correct answer.