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The effect of errors on reading of an instrument cannot be minimized by:

The effect of errors on reading of an instrument cannot be minimized by: Correct Answer Using an instrument whose least count is as small as possible

Concept:

Measuring instrument:

  • An instrument that is generally used for a measurement called a measuring instrument.
  • It includes both analogue and digital instruments.
  • Some examples of measuring instrument are vernier callipers micrometre, laser measure, ruler etc.
  • Quantification of results obtained by using measurement tools called measurement.


Errors in measurement:

  • Error is defined as is the difference between a measured quantity and its true value. 

  • It includes a random error which is a naturally occurring error and a systematic error caused by a miscalibrated instrument that affects all measurements.

Explanation:

A various method to minimise the error:

Taking a large number of readings: 

  • Numbers of reading gives an idea of the actual value of the physical quantity.
  • If the numbers of reading are large, then the average of that reading approach closer to the actual value.


Using an instrument whose least count is as large as possible:

  • The least count is the smallest value that can be measured by the measuring instrument.
  • Instruments of higher precision can reduce the least count error.
  • That means the least count is inversely proportional to precision and that leads to less error.


Taking large magnitude of quantity:

  • ​If we have a large quantity,  it will lead to lesser error as compared to less magnitude of quantity.
  • we have the freedom to take multiple readings and It will lead to lesser personal error.

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