Physics Practical Handbook: Std. 11 Science - Target Publications

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TARGET PublicationsObservations:i. Distance (X) travelled by the circular scale in five rotations = ………. cmUse of Micrometer screw gaugeii.Pitch of the screw = X 5 = ………..iii. Number of divisions on the circular scale = ………..iv.PitchL.C. =No. of divisions on circular scale = …………v. Zero error, Z = ± (m) (L.C.) = …………Observation table:ObjectObs.No.1.2.M.S.R.‘a’(cm)C.S.D.n(div.)C.S.R.b = n × (L.C.)(cm)Total readingT = a + b(cm)Corrected reading= T − Z(cm)Wire3.4.5.1.2.Plate3.4.5.Note:From the diameter of wire, radius of the wire can also be found out and hence cross sectional area ofthe wire can be calculated. From the last column in the observation, mean diameter of the wire andmean thickness of the plate can be found out.Result:i. Diameter of wire = ………. cmii. Thickness of the plate (metal or glass) = ………. cmStd. XI Sci. : Physics Practical Handbook 7
TARGET PublicationsUse of Micrometer screw gaugePrecautions:i. Do not apply undue pressure while turning micrometer screw.ii. Take number of independent readings by holding the wire in different positions.iii. Minimise the blacklash error by rotating the screw always in the same direction while takingreadings.Space for calculation:Std. XI Sci. : Physics Practical Handbook 8
Page 5: PREFACEPhysics has played a major r
Page 9 and 10: TARGET PublicationsUse of Vernier C
Page 11 and 12: TARGET PublicationsUse of Vernier C
Page 13: TARGET PublicationsFormula:Cross-se

Physics Practical Handbook: Std. 11 Science - Target Publications

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