A mass of about 250 g is to be measured in a room where temperature fluctuations…
PHYSICS · Single correct · CBSE · Physics · Units and Measurements · Units and Measurements
Problem
A mass of about 250 g is to be measured in a room where temperature fluctuations introduce a systematic error of ±0.30 g. The total percentage uncertainty (instrument + systematic) must not exceed 0.30 %. Which balance should be selected?
(a) Balance Q: least count 0.60g
(b) Balance R: least count 0.40g
(c) Balance S: least count 0.70g
(d) Balance P: least count 1.0g