what is personal error? how can we minimize it?
Answers
Answer:
The main types of measurement error
Systematic errors: Systematic error arises from a faulty measuring device, imperfect observation methods, or an uncontrolled environment. Such error is predictable and is usually constant or yields results proportional to the measurement’s true value.
Random errors: Random errors occur as a result of sudden, random changes in an experiment’s conditions. Such errors are always present in an experiment and largely unavoidable.
Answer:
PERSONAL ERROR :- These errors arise due to individual's bias, lack of proper setting of apparatus or individual's carelessness in taking observations without observing proper precautions, etc. E.g., when an observer holds his head towards right (by habit), while reading a scale, he introduces some error due to parallax
TO MINIMIZE PERSONAL ERRORS, WE NEED TO -:
- Use quality equipment. Using quality equipment is paramount to reducing systematic measurement error.
- Calibrate your equipment properly. Before conducting an experiment, make sure to properly calibrate your measurement instruments to avoid inaccurate results.
- Properly train lab staff.
- Controlled environment.
- Double-check.
Explanation: