Measurement of Physical Quantities
Fundamental quantities and international system of units
We very often are in a position where we have to measure something, for example, when want to know how far Delhi is from Mumbai, what is the length of the piece of cloth we have to buy to stitch a new shirt or even when we ask about how much time does it take to fly to Chennai from Mumbai. Have you ever thought how many times we use exact or accurate measurement for these purposes?
We need not be very accurate every time we take a measurement. The degrees of accuracy in measurements vary according to the situations. For example, when someone asks about the time of the day, we do not have to be specific up to…
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