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प्रश्न
What do you understand by the following term as applied to screw gauge?
Negative zero error
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उत्तर
Negative zero error: If the zero of the circular scale is above the reference line of the main scale, then the screw gauge is said to have negative zero error and correction is positive.
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संबंधित प्रश्न
The wavelength of light of a particular colour is 5800 Å.
Express it in nanometre.
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?
Up to how many decimal places can a common vernier callipers measure the length in cm?
State the formula for calculating length if:
The reading of the main scale is known and the number of vernier scale divisions coinciding with the main scale is known.
What do you understand by the following term as applied to micrometre screw gauge?
Thimble scale
What is the backlash error?
State whether the following statement is true or false by writing T/F against it.
The diameter of a wire can be measured more accurately by using vernier calipers than by a screw gauge.
