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प्रश्न
Name the measuring employed to measure the diameter of a needle.
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उत्तर
Measuring employed to measure the following
The diameter of a needle = Screw Gauge
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संबंधित प्रश्न
Define the term 'Vernier constant'.
What is meant by zero error of vernier callipers ? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?
(a) A vernier scale has 20 divisions. It slides over the main scale, whose pitch is 0.5 mm. If the number of divisions on the left hand of the zero of vernier on the main scale is 38 and the 18th vernier scale division coincides with the main scale, calculate the diameter of the sphere, held in the jaws of vernier callipers.
(b) If the vernier has a negative error of 0.04 cm, calculate the corrected radius of the sphere.
State the correction if the negative error is 7 divisions when the least count is 0.01 cm.
The circular scale of a screw gauge has 50 divisions. Its spindle moves by 2 mm on the sleeve, when given four complete rotations calculate
- pitch
- least count
What is the function of ratchet in the screw gauge?
Name the measuring employed to measure the diameter of a pencil.
What is the least count in the case of the following instrument?
Thermometer
