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A measuring flask.
A measuring cup.
A measuring cylinder
Relative Humidity!
use a ruler or other measuring instrument
measuring cylinder, volumetric flask and so many more
You have to find the LC (the least countable) of the tool.
piano (apex)
LC= S over N
A balance is used for measuring mass. A scale is used for measuring weight. (Usually a scale us used for mass.)
Least count of voltmeter is the value of one division on the scale. Formula is: Least count = Range/No. of divisions For example, if a voltmeter can measure from 0 to 40 V, and it has 100 divisions in total on the scale, then its least count is 40/100 = 0.4V
Start by measuring accurately, then just remove digits until you have the precision you want.