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The mean length of an object is 5 cm. Wh...

The mean length of an object is 5 cm. Which of the following measurements is most accurate?

A

4.9cm

B

4.805cm

C

5.25cm

D

5.4cm

Text Solution

Verified by Experts

The correct Answer is:
A
Given length`l=5` cm
Now, checking the errors with each option one by one, we get
`trianglel_1=5-4.9=0.1` cm
`trianglel_2=5-4.805=0.195` cm
`trianglel_3=5.25-5=0.25` cm
`trianglel_4=5.4-5=0.4` cm
Error `trianglel_1` is least.
Hence 4.9cm is most precise
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