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JEE Main 2011
Exam
JEE Main
Year
2011
Subject
Physics
Chapter
Experimental Physics

JEE Main 2011 · Physics · Experimental Physics

A screw gauge gives the following reading when used to measure the...

A screw gauge gives the following reading when used to measure the diameter of a wire. Main scale reading : 0 mm0 \mathrm{~mm} Circular scale reading : 52 divisions Given that 1 mm1 \mathrm{~mm} on main scale corresponds to 100 divisions of the circular scale. The diameter of wire from the above date is :

Options

  1. A0.052 cm0.052 \mathrm{~cm}
  2. B0.026 cm0.026 \mathrm{~cm}
  3. C0.005 cm0.005 \mathrm{~cm}
  4. D0.52 cm0.52 \mathrm{~cm}

Correct answer

A. 0.052 cm0.052 \mathrm{~cm}

Step-by-step solution

Diameter of wire =1100×52=0.52 mm=0.052 cm=\frac{1}{100} \times 52=0.52 \mathrm{~mm}=0.052 \mathrm{~cm}
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