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प्रश्न
Explain the term least count of a screw gauge. How are they determined?
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उत्तर
Least count refers to the smallest reading that can be accurately measured while using an instrument. The least count is the value of one division on its scale.
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संबंधित प्रश्न
Draw a neat and labelled diagram of a vernier callipers. Name its main parts and state their functions.
State three uses of the vernier callipers.
Explain the terms : Pitch .
How are they determined?
The circular scale of a screw gauge has 100 divisions. Its spindle moves forward by 2.5 mm when given five complete turns. Calculate
- pitch
- least count of the screw gauge
A micrometre screw gauge has a negative zero error of 8 divisions. While measuring the diameter of a wire the reading on the main scale is 3 divisions and the 24th circular scale division coincides with baseline.
If the number of divisions on the main scale are 20 to a centimetre and circular scale has 50 divisions, calculate
- pitch
- observed diameter.
- least count
- corrected diameter.
Name the measuring employed to measure the diameter of a pencil.
State whether the following statement is true or false by writing T/F against it.
The diameter of a wire can be measured more accurately by using vernier calipers than by a screw gauge.
What is the least count in the case of the following instrument?
Metre scale
What is the least count in the case of the following instrument?
Stopwatch
