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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

4.9 cm

B

4.805 cm

C

5.25 cm

D

5.4 cm

Text Solution

Verified by Experts

The correct Answer is:
(a)
Here, x =5 cm
`Deltax_1 =5- 4.9 = 0.1 cm, Delta x_2 =5- 4.805 = 0.195cm`
`Delta x_3 = 5-5.25 = - 0.25 cm, Delta x_4 = 5-5.4 = - 0.4 cm`
Choice (a) is most accurate.
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