a student writes the length of an object measured from a metre ruler as 4.20cm .is he justified in writing this value?
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On a meter scale we have divisions in terms of centimeters and millimeters.
We have the smallest measurement being a millimeter. So
we can write the measurement as 4.2 centimeters, 42 millimeters or 0.42 meters.
we do not have measurement accuracy to 0.1 millmeters, so we cannot write 42.0 mm or 4.20 mm..
We have the smallest measurement being a millimeter. So
we can write the measurement as 4.2 centimeters, 42 millimeters or 0.42 meters.
we do not have measurement accuracy to 0.1 millmeters, so we cannot write 42.0 mm or 4.20 mm..
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