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

The mean length of an object is `5cm`. Which of the following measurement 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
Givenlength, `l=5cm` Now , checking the error with each option one by one, we get `Deltal_(1)=5-4.9=0.1cm`
`Deltal_(2)=5-4.805=0.195cm`
`Deltal_(3)=5.25-5=0.25cm`
`Deltal_(4)=5.4-5=0.4cm`
Error `Deltal_(1)` is least.
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