Q1) Four research teams A, B, C and D measured the half life of a radioactive...
Q1) Four research teams A, B, C and D measured the half life of a radioactive isotope, and what each team wrote in its team note book is show below.
A = "0.55s"
B = "0.520s ± 0.005s"
C = "0.560s ± 0.40%
D = "between 0.534s and 0.536s"
Suppose a later and a more reliable measurement gives 0.540 s for the half life of the same isotope. Decide which of the earlier measurements was the most accurate and which was the most precise.
Homework Answers
Accuracy is how close the measured value is to the true value (actual value)
Team D value is close to the true value. So team D value is accurate
Precision refers to the closeness of two or more measured value with more decimals
Team D values are close to each other with a difference of 0.002. So team D values are precise
Thank you
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