Physics lab on propagation of errors. In this experiment I investigated the propagation of errors while calculating the volume of two objects.

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PHYSICS LAB 5

PROPAGATION OF ERRORS

                                                     , By Satish Ahuja

In this experiment I investigated the propagation of errors while calculating the volume of two objects. I came to the conclusion that a measuring instrument like a screw gauge has some problematic limitations. This, along with other human factors, introduces uncertainties and errors in the measurement. Careful procedure can minimize these errors but cannot remove them completely. The errors in individual measurements contribute to the result of calculations using the measured quantities. Various precautions need to be taken to minimize errors in measurements and study of how these errors propagate during the various calculations needs to be taken.

The aim of this experiment was to investigate the propagation of errors while calculating the volume of a Cylindrical and a Spherical object.

My experiment included calculating the volume of two objects by two different methods.

 Apparatus: Vernier calipers, given spherical object, given cylindrical object, a measuring cylinder, and string.

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In the beginning of this experiment I calculated the volume of both the given objects by two different methods each. I decided to first take the spherical object. The amount of water displaced by the spherical object is equal to the volume of said object. The rise in the level of water came out to be 9cm3. The error in this case can be calculated as + 1 (because the LC of the cylinder is 0.5 mm). Next we calculate the volume using the formula to calculate the volume of a sphere i.e.Volume of a sphere = 4/3 πr3. The radius of ...

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