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प्रश्न
While measuring the length of a rod with a vernier callipers, below shows the position of its scales. What is the length of the rod?
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उत्तर
L.C. of vernier callipers = 0.01 cm
In the shown scale,
Main scale reading = 3.3 cm
The 6th vernier division coincides with an m.s.d.
Therefore, vernier scale reading = 6 × 0.01 cm = 0.06 cm
Total reading = M.S.R. + V.S.R.
= 3.3 + 0.06
= 3.36 cm
संबंधित प्रश्न
Explain the terms : Least count of a screw gauge.
How are they determined?
A screw gauge has 50 divisions on its circular scale and its screw moves by 1 mm on turning it by two revolutions. When the flat end of the screw is in contact with the stud, the zero of the circular scale lies below the base line and 4th division of the circular scale is in line with the base line. Find
(i) The pitch,
(ii) The least count and
(iii) The zero error of the screw gauge
Why is the metre length in terms of the wavelength of light considered more accurate?
What is the need for measuring length with vernier callipers?
Figure shows a screw gauge in which circular scale has 200 divisions. Calculate the least count and radius of the wire.
What is the least count in the case of the following instrument?
Thermometer
How will you find the Zero Error of Vernier Caliper? Explain.
