The result of every measurement by any measuring instrument contains some uncertainty.
This uncertainty is known as ______.

Correct option is C

The correct answer is (c) errors.
In measurements, uncertainty refers to the deviation or inaccuracy in the result, which is unavoidable due to various factors like the limitations of measuring instruments, environmental conditions, and human error. This uncertainty is generally known as "errors." Errors can be systematic (caused by consistent bias in the measuring process) or random (arising from unpredictable fluctuations during measurement).
Information Booster: ● Error in measurement refers to the difference between the measured value and the true value. ● Errors can be categorized as systematic errors (consistent and predictable) and random errors (unpredictable and varying). ● Reducing errors increases the reliability and quality of measurements. ● No measurement is perfectly free from error due to instrument limitations and human factors. ● Measurement techniques aim to minimize errors to improve precision and accuracy.