A rod has length

PHYSICS · Single correct · CBSE · Physics · Units and Measurements · Units and Measurements

Problem

A rod has length

l = 25.0 \pm 0.2\,\text{cm}

. It is required to find

l^{3}

. The percentage uncertainty in

l^{3}

is (a)

7.2\%

(b)

0.8\%

(c)

2.4\%

(d)

1.6\%