Question

12. The type of errors which can be eliminated
A) Systematic errors
B) Random errors
C) Both A and B
D) Neither A nor B​

Answer 1

Answer:

Systematic error .................

Answer 2

The type of error which can be eliminated is Systematic Error.

• As the name implies, systematic error is a recurring or consistent error caused by incorrect use or generally poor experimental equipment. When there is systematic error, the outcome of each experiment will differ from the value in the original data.
• Because of random error, one measurement may differ slightly from the next. It results from unpredictability during an experiment. If a reading is taken in the same way each time, systematic error always affects measurements by the same amount or proportion. It is foreseen.

• Systematic Error examples and causes-

1. When a balance is not tared or zeroed, mass measurements are always "off" by the same amount. An offset error is one caused by not setting an instrument to zero prior to use.
2. A volume measurement will always be inaccurate if the meniscus is not read at eye level. Depending on whether the reading is taken above or below the mark, the value will be consistently low or high.
3. Due to the thermal expansion of the material, measuring length with a metal ruler at a cold temperature will yield a different result than measuring length at a hot temperature.

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