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

Engineering

Physics

Errors

Question

A screw gauge gives the following reading when used to measure the diameter of a wire.

Main scale reading : 0 mm.

Circular scale reading : 52 divisions

Given that 1 mm on main scale corresponds to 100 divisions of the circular scale. The diameter of wire from the above data is :

0.026 cm

0.052 cm

0.52 cm

0.005 cm

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

Least count of screw gauge $= \frac{1}{100} mm = 0.01 mn$

Diameter - Divisions on circular scale × least count + main scale reading

$= 52 \times \frac{1}{100} + 0$

= 0.52 mm

diameter = 0.052 cm

Please subscribe our Youtube channel to unlock this solution.