First slide

Accuracy; precision of instruments and errors in measurements

Question

The mass of a ball is $1.76 kg$ . The mass of 25 such balls is

Easy

A

$0.44 \times 10^{3} kg$
B

$4.40 kg$
C

$44 kg$
D

$44.00 kg$

Solution

If we add $1.76 kg$ , twenty five times
Then, $m_{r} = 44 kg$
From the law of significant figures for addition answer should be,
$m_{r} = 44.00 kg$

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