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प्रश्न
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उत्तर
If the zero of the one scale (vernier scale or circular scale of screw gauge) does not coincide with the zero of the main scale, this is known as zero scales, zero error arises. There are two types of zero error -
(a) If the zero of the scale remains below the line of graduation of the main scale then it is called positive zero error
(b) If the zero of the scale lies above the line of graduation of the main scale then it is called negative zero error
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संबंधित प्रश्न
Name the instrument which can accurately measure the following
The thickness of a paper
Name the instrument which has the least count
0.01 mm
Radius of a thin wire is measured by ______.
What do you know about pitch of screw gauge?
______ consists of a ‘U’ shape metal frame.
The precision of the screw gauge is 0.001 cm.
Write the principle of screw gauge.
How will you find Zero errors in the screw gauge?
A screw gauge has a pitch of 1 mm and 100 divisions on the circular scale. What is the least count of the instrument?
The main scale reading of a screw gauge is 2 mm and the circular scale reading is 45. If the least count is 0.01 mm, what is the actual reading?
