A. Least Count of an Instrument Scale DATA TABLE 1 Purpose: To practice determining least count and estimated fraction of least count. Instrument Least count Estimated fraction Meterstick Vernier caliper Micrometer caliper Balance Graduated cylinder
1.The probable sources of error can be from the least count of the vernier caliper or the micrometer caliper. Apart from that there can always be a human error or parallax error while taking down the observations.
2. The metric system is a worldwide standard system so it has a number of advantages. Measurements can be performed easily and comparisons can be done much quicker. The precision of decimal values helps in avoiding errors.
3. To find out the volume of an irregularly shaped object we use the Archimedes’ principle. It states tht any object immersed in a fluid at rest experience an upward force called the bouyant force. Magnitude of force would be equivalent to the weight of the fluid which was displaced by the object and the volume of the object will be the volume of the fluid displaced by the object. So to find the volume we take a bucket of water and note it's water level. submerge the object into the water and note the rise in water level and calculate the volume by formula of volume of a cylinder.
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