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प्रश्न
What do you understand by the following term as applied to screw gauge?
Positive zero error
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उत्तर
Positive zero error: If the zero of the circular scale is below the reference line of the main scale, then the screw gauge is said to have positive zero error and the correction is negative.
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संबंधित प्रश्न
Name the instrument which can accurately measure the following
The internal diameter of the neck of a water bottle
(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.
State the formula for determining a pitch
How do you account for negative zero error, for calculating the correct diameter of wires?
State whether the following statement is true or false by writing T/F against it.
A metre scale can measure a length of 6.346 cm.
Thickness of a cricket ball is measured by ______.
On a vernier calliper, 25 vernier scale divisions are equal in length to 24 main scale divisions. One main scale division is 1 mm. Find the least count of the instrument.
In a vernier calipers, (N + 1) divisions of vernier scale coincide with N divisions of main scale. If 1 MSD represents 0.1 mm, the vernier constant (in cm) is ______.
