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प्रश्न
When is a vernier Callipers said to be free from zero error?
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उत्तर
A vernier Callipers are said to be free from zero error if the zero marks of the vernier scale coincides with the zero marks of the main scale.
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संबंधित प्रश्न
Explain the terms : Pitch .
How are they determined?
State one use of a screw gauge.
Name the instrument which can accurately measure the following
The internal diameter of the neck of a water bottle
When a screw gauge with a least count of 0.01 mm is used to measure the diameter of a wire, the reading on the sleeve is found to be 1 mm and the reading on the thimble is found to be 27 divisions.
(i) What is the diameter of the wire in cm?
(ii) If the zero error is +0.005 cm, what is the correct diameter?
The main scale of vernier callipers has 10 divisions in a centimetre and 10 vernier scale divisions coincide with 9 main scale divisions. Calculate
- pitch
- L.C. of vernier callipers.
The least count of a vernier callipers is 0.01 cm and it has an error of + 0.07 cm. While measuring the radius of a sphere, the main scale reading is 2.90 cm and the 5th vernier scale division coincides with the main scale. Calculate the correct radius.
Define the term pitch.
Define the term least count as applied to a vernier callipers.
What is the backlash error?
State whether the following statement is true or false by writing T/F against it.
The least count of a screw gauge can be lowered by increasing the number of divisions on its thimble.
