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प्रश्न
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 diameter of a needle
Name the instrument which can accurately measure the following
The thickness of a paper
Name the instrument which can accurately measure the following
The diameter of a pencil.
Name the instrument which has the least count
0.01 mm
Radius of a thin wire is measured by ______.
Match the following.
| 1. | Screw gauge | Vegetables |
| 2. | Vernier caliper | Coins |
| 3. | Beam balance | Gold ornaments |
| 4. | Digital balance | Cricket ball |
What do you know about pitch of screw gauge?
______ consists of a ‘U’ shape metal frame.
Write the principle of screw gauge.
How will you find Zero errors in the screw gauge?
