Question

Distinguish between accuracy and precision.
What are the different types of errors that can occur in a measurement?
How can systematic errors be minimised or eliminated ?​

Answer 1

Answer:

answer 1. Precision and accuracy are often used interchangeably, but in science they have very different meanings. Measurements that are close to the known value are said to be accurate, whereas measurements that are close to each other are said to be precise

answer 2. Generally errors are classified into three types: systematic errors, random errors and blunders. Gross errors are caused by mistake in using instruments or meters, calculating measurement and recording data results. The best example of these errors is a person or operator reading pressure gage 1.01N/m2 as 1.10N/m2.

answer 3. Systematic errors can also be detected by measuring already known quantities Such errors cannot be removed by repeating measurements or averaging large numbers of results. A common method to remove systematic error is through calibration of the measurement instrument.

Answer 2

ASSALAMU ALIKUM.....❤

☆. ACCURACY ☆.

• Accuracy is the nearness of measured values of a physical quantity to the True value .
• Accuracy depends on Errors.

☆.PRECISION ☆

• Precision is the extent of resolution of a quanity to be measured.
• Precision depends on the least count of the measuring instruments.

☆.types of errors☆

• systematic errors
• Random errors.

The systematic errors can be minimized by

1. selecting better instriments with the higher resolution
2. Taking care to aviod personal bias.
3. Improving the experimebtal techniques.