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प्रश्न
Which of the following measures a small length to a high accuracy: metre scale, vernier calipers, screw gauge?
टीपा लिहा
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उत्तर
Screw gauge measures a small length to a high accuracy because it has the lowest least count among the given three instruments. And low least count means high accuracy
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संबंधित प्रश्न
The wavelength of light of a particular colour is 5800 Å.
Express it in metre.
Draw a neat and labelled diagram of a screw gauge.
Name its main parts and state their functions.
State one use of a screw gauge.
Figure shows the position of vernier scale while measuring the external length of a wooden cylinder.
- What is the length recorded by the main scale?
- Which reading of vernier scale coincides with the main scale?
- Calculate the length.
Who invented vernier callipers?
What do you understand by the following term as applied to micrometre screw gauge?
Thimble
What is the purpose of a ratchet in a screw gauge?
What is the backlash error?
What is the least count in the case of the following instrument?
Stopwatch
If the 47th division of the circular scale coincides with the zero of the main scale of a screw gauge of least count 0.01 mm and having 50 circular divisions, what is it's zero error?
