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...International journal of applied research issn print online adventures in practical physics our lives impact factor ijar www allresearchjournal com received jasdeep kaur avinash accepted abstract deptt a s college has played major role the development science and technology during years it khanna covers wide range phenomena from smallest sub atomic particles to largest galaxies is study matter energy interaction between them applications fields engineering medicine etc student obtain laboratory skills design experiments apply instrumentation such as electronic circuits observe measure natural master one needs have complete thorough knowledge all involved keywords vernier callipers screw gauge microscope telescope introduction fascinated imagination scientists engineers technologists because its immense potentialities positive on way people live today almost every physical situation there need for measurement length time measurements are fundamental requirements daily life various devic...