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प्रश्न
When does a vernier callipers has the negative error?
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उत्तर
Negative Error: If the zero of the vernier scale is on the left-hand side of zero of the main scale, the error is said to be negative and the correction is said to be positive.
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संबंधित प्रश्न
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
A screw has a pitch equal to 0.5 mm. What should be the number of divisions on its head so as to read correctly up to 0.001 mm with its help?
Why is the metre length in terms of the wavelength of light considered more accurate?
The main scale of vernier callipers has 10 divisions in a centimetre and 10 vernier scale divisions coincide with 9 main scale divisions. Calculate
- pitch
- L.C. of vernier callipers.
(a) A vernier scale has 10 divisions. It slides over the main scale, whose pitch is 1.0 mm. If the number of divisions on the left hand of zero of the vernier scale on the main scale is 56 and the 8th vernier scale division coincides with the main scale, calculate the length in centimetres.
(b) If the above instrument has a negative error of 0.07 cm, calculate the corrected length.
What is the function of ratchet in the screw gauge?
What do you understand by the following term as applied to screw gauge?
Negative zero error
What is the backlash error?
A vernier caliper using the scale invented by Galileo.
