Question

The mean time period of second's pendulum is 2.00 s and mean absolute error in the time period is 0.05s. To express maximum estimate of error, the time period should be written as

Answer 1

Answer:

Maximum estimate of error is (2.00±0.05) seconds.

Explanation:

GIVEN:-

Mean Time Period , T = 2.00 seconds

Mean Absolute Error , △T = 0.05 seconds

Now , in the question its not written whether the error is of reducing or increasing the time period.

So,  

To express the maximum estimate of error it will be (2.00±0.05) seconds.

What is error?

Error occurs in a value where the is lack of certainity.

For example - If we use a Taraju (Scales) to measure 1 kg = 1000g Potatoes it will measure it but it may be 1000.9 g still, that instrument won't show that. Here come learning about errors and accuracy and precision of instruments.

Answer 2

The error of time period is given as below.

• According to statement the mean time period is given T=2.00 sec
• Mean absolute error is 0.05 sec.
• Now to understand the error came, as the error can be caused by the air resistance or particles near by or error can be created when there is increase in speed of air.
• Now to calculate the maximum estimated we just need to add or subtract the above values.
• That is (2.00 - 0.05)sec or (2.00+ 0.05)sec
• This written in this way because due to error time period can be increases or decreased