Questions
The mean length of an object is 5 cm. Which of the following measurements is most accurate?
a
4.9 cm
b
4. 805 cm
c
5.25 cm
d
5.4 cm
detailed solution
Correct option is A
Given length l = 5 cmNow, checking the errors with each options one by one, we getΔl1 = 5−4.9 = 0.1cmΔl2 = 5−4.805 = 0.195cmΔl3 = 5.25−5 = 0.25cmΔl4 = 5.4−5 = 0.4 cmError Δl1 is leastHence 4.9 cm is most precise.Talk to our academic expert!
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