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प्रश्न
What is the least count in the case of the following instrument?
Thermometer
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उत्तर
The least count of the following is
Thermometer= 0.1°c
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संबंधित प्रश्न
When is a vernier Callipers said to be free from zero error?
Name the instrument which can accurately measure the following
The internal diameter of the neck of a water bottle
The diameter of a thin wire can be measured by
(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
State the correction if the negative error is 7 divisions when the least count is 0.01 cm.
Figure shows a screw gauge in which circular scale has 200 divisions. Calculate the least count and radius of the wire.

A micrometre screw gauge has a positive zero error of 7 divisions, such that its main scale is marked in 1/2 mm and the circular scale has 100 divisions. The spindle of the screw advances by 1 division complete rotation.
If this screw gauge reading is 9 divisions on the main scale and 67 divisions on the circular scale for the diameter of a thin wire, calculate
- Pitch
- L.C.
- Observed diameter
- Corrected diameter
Name the measuring employed to measure the thickness of a paper.
