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What is a systematic error?
- a)It is a compensating error
- b)It is a cumulative error that occurs under the same conditions
- c)It is an error that occurs because of change of temperature
- d)It is an error that occurs due to faulty adjustments of the instruments.
Correct answer is option 'B'. Can you explain this answer?
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What is a systematic error?a)It is a compensating errorb)It is a cumul...
Systematic Error
Systematic error is a type of error that occurs consistently in the same direction in a series of measurements. It arises due to a flaw in the measuring instrument or a mistake in the experimental setup. Unlike random error, systematic error cannot be reduced by increasing the number of measurements.
Explanation
Option B is the correct answer because a systematic error occurs due to a change in temperature. Systematic error is also known as bias error, and it can arise due to many factors such as instrument calibration, environmental conditions, and human error. In this case, change in temperature can cause the instrument to expand or contract, leading to inaccurate readings. For example, a thermometer that is calibrated at room temperature may give incorrect readings when used in a hot or cold environment.
Other Causes of Systematic Error
Apart from change in temperature, there are other causes of systematic error, which include:
1. Faulty adjustments of the instruments - If the instruments used in an experiment are not calibrated correctly, they can produce inaccurate readings.
2. Human error - Human error can occur when an experimenter consistently makes the same mistake while conducting an experiment.
3. Instrument drift - Over time, instruments can become less accurate due to wear and tear or aging, leading to systematic error.
4. Environmental conditions - Changes in humidity, pressure, or other environmental conditions can affect the accuracy of an instrument.
Conclusion
In conclusion, systematic error is a type of error that occurs consistently in the same direction in a series of measurements. It arises due to a flaw in the measuring instrument or a mistake in the experimental setup. Option B is the correct answer as a change in temperature is one of the causes of systematic error.
Systematic error is a type of error that occurs consistently in the same direction in a series of measurements. It arises due to a flaw in the measuring instrument or a mistake in the experimental setup. Unlike random error, systematic error cannot be reduced by increasing the number of measurements.
Explanation
Option B is the correct answer because a systematic error occurs due to a change in temperature. Systematic error is also known as bias error, and it can arise due to many factors such as instrument calibration, environmental conditions, and human error. In this case, change in temperature can cause the instrument to expand or contract, leading to inaccurate readings. For example, a thermometer that is calibrated at room temperature may give incorrect readings when used in a hot or cold environment.
Other Causes of Systematic Error
Apart from change in temperature, there are other causes of systematic error, which include:
1. Faulty adjustments of the instruments - If the instruments used in an experiment are not calibrated correctly, they can produce inaccurate readings.
2. Human error - Human error can occur when an experimenter consistently makes the same mistake while conducting an experiment.
3. Instrument drift - Over time, instruments can become less accurate due to wear and tear or aging, leading to systematic error.
4. Environmental conditions - Changes in humidity, pressure, or other environmental conditions can affect the accuracy of an instrument.
Conclusion
In conclusion, systematic error is a type of error that occurs consistently in the same direction in a series of measurements. It arises due to a flaw in the measuring instrument or a mistake in the experimental setup. Option B is the correct answer as a change in temperature is one of the causes of systematic error.
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What is a systematic error?a)It is a compensating errorb)It is a cumul...
Cumulative Errors/Systematic errors:
(i) The errors that occur in the same direction and which finally tend to accumulate are said to be Cumulative errors.
(ii) They are cumulative in nature. Examples of systematic errors are Collimation in a level, Expansion of steel tape, etc.
(iii) They are proportional to the length of the line.
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