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प्रश्न
State the formula for determining a pitch
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उत्तर
Pitch = `"Unit of main scale"/"No. of divisions in the unit"`
For example: If one-centimetre length has ten divisions then
Pitch = `(1"cm")/10` = 0.1 cm
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संबंधित प्रश्न
Draw a neat and labelled diagram of a vernier callipers. Name its main parts and state their functions.
In the vernier callipers, there are 10 divisions on the vernier scale and 1 cm on the main scale is divided into 10 parts. While measuring the length, the zero of the vernier lies just ahead of the 1.8 cm mark and the 4th division of vernier coincides with a main scale division.
(a) Find the length.
(b) If zero error of vernier callipers is -0.02 cm,
What is the correct length ?
Is it possible to increase the degree of accuracy by mathematical manipulations? Support your answer by an example.
Who invented vernier callipers?
The thimble of a screw gauge has 50 divisions for one rotation. The spindle advances 1 mm when the screw is turned through two rotations.
- What is the pitch of the screw?
- What is the least count of screw gauge?
- When the screw gauge is used to measure the diameter of wire the reading on the sleeve is found to be 0.5 mm and reading on thimble is found, 27 divisions. What is the diameter of the wire in centimetres?
What do you understand by the following term as applied to micrometre screw gauge?
Thimble scale
What do you understand by the following term as applied to micrometre screw gauge?
Baseline
What do you understand by the following term as applied to screw gauge?
Negative zero error
What is the least count in the case of the following instrument?
vernier calipers
What is the least count in the case of the following instrument?
Stopwatch
