Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 2008
Exam
JEE Main
Year
2008
Subject
Physics
Chapter
Experimental Physics

JEE Main 2008 · Physics · Experimental Physics

Two full turns of the circular scale of a screw gauge cover a...

Two full turns of the circular scale of a screw gauge cover a distance of 1 mm1 \mathrm{~mm} on its main scale. The total number of divisions on the circular scale is 50 . Further, it is found that the screw gauge has a zero error of −0.03 mm-0.03 \mathrm{~mm} while measuring the diameter of a thin wire, a student notes the main scale reading of 3 mm3 \mathrm{~mm} and the number of circular scale divisions in line with the main scale as 35 . The diameter of the wire is

Options

  1. A3.32 mm3.32 \mathrm{~mm}
  2. B3.73 mm3.73 \mathrm{~mm}
  3. C3.67 mm3.67 \mathrm{~mm}
  4. D3.38 mm3.38 \mathrm{~mm}

Correct answer

D. 3.38 mm3.38 \mathrm{~mm}

Step-by-step solution

Diameter = M.S.R. ++ C.S.R ×\times L.C. ++ Z.E. =3+35×(0.5/50)+0.03=3.38 mm=3+35 \times(0.5 / 50)+0.03=3.38 \mathrm{~mm}
Practice Experimental Physics on Quantrex Academy →

More from Experimental Physics

Two thin wires, Wire-1 of diameter 0.650 mm and Wire-2 of unknown diameter d are given.… JEE Advanced 2026In a Vernier calipers, when both jaws touch each other, zero of the Vernier scale is… JEE Main 2026In a screw gauge when the circular scale is given five complete rotations it moves… JEE Main 2026In a screw gauge the zero of main scale reference line coincides with the fifth division… JEE Main 2026In an experiment, a set of reading are obtained as follows - 1.24 ~mm, 1.25 ~mm, 1.23 ~mm… JEE Main 2026When both jaws of vernier callipers touch each other, zero mark of the vernier scale is… JEE Main 2026In a vernier callipers, 50 vernier scale divisions are equal to 48 main scale divisions.… JEE Main 2026In a screw gauge, the zero of the circular scale lies 3 divisions above the horizontal… JEE Main 2026 Full Experimental Physics list All JEE Main PYQs