Question

The most accurate reading of the length of a $6.28cm$ long fibre is

• A. 6 cm
• B. 6.5 cm
• C. 5.99 cm
• D. 6.0 cm

Answer 1

Answer: (B)

Most accurate reading is the one having minimum error.
So, $16-6.281=0.28cm$
$16.5-6.281=0.22cm$
$15.99-6.281=0.29cm$
$16.0-6.281=0.28cm$
So, second reading is most accurate.