The radius of a wire is and its length is

PHYSICS · Subjective · A Level · Physics · Measurements and their errors · Measurements and their errors

Problem

The radius of a wire is

2.50\text{ mm}

and its length is

50.0\text{ cm}

. If the mass of the wire is measured as

25\text{ g}

, find the density of the wire in correct significant figures. Take

\pi=3.14

exactly.