Question

Zero error of an instrument introduces:
A) Systematic errors
B) Random errors
C) Both
D) None

Answer 1

Hint: Errors may occur in two types of random errors and systematic errors, these errors are found in experiment. In practical labs we usually face these issues. We have to know the way of resolving and zero errors we found in experimental observations usually come from those instruments which are used for measuring.

Step by step solution:
Zero error means as the name suggests the error has a relation with the zero mark on a scale. In a practical lab, It is important to identify the magnitude of the error and then to remove it from the reading with the error to get the true reading. Random errors in experimental measurements are caused by unknown and unpredictable changes in the experiment. Systematic errors in experimental observations usually come from the instruments which are used in measuring. So, zero error is recognized as the systematic error.

Hence, the correct option is A.

Additional information:
$\bullet$ True value may be defined as the average value of an infinite number of measured values when average deviation due to various contributing factors will approach zero. It is not possible to determine the true value of a quantity by experimental.
$\bullet$ There is one thing to know about static error is defined as the difference of the measured value and the true value of the quantity.

Note:
Zero error is defined as the error a measuring instrument is reading when it should be on the zero mark. For example zero error of a micrometer screw gauge occurs when the flat end of the screw touches the stud and the gauge reads other than zero. If there is an error it shows in a positive or negative calculation result. whenever, well calibrated micrometers that are in good condition measure close to zero and they do not introduce a noticeable error.