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प्रश्न
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.
पर्याय
True
False
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उत्तर
False
because the accuracy is higher in case of screw gauge due to lower least count value of 0.01mm
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संबंधित प्रश्न
Name the part of the vernier callipers which is used to measure the following
Depth of a small bottle
Explain the terms : Least count of a screw gauge.
How are they determined?
State the purpose of ratchet in a screw gauge.
A boy uses a vernier callipers to measure the thickness of his pencil. He measures it to be 1.4 mm. If the zero error of vernier callipers is +0.02 cm, what is the correct thickness of the pencil?
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.
In figure for vernier callipers, calculate the length recorded.
(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.
What is the need for measuring length with vernier callipers?
Up to how many decimal places can a common vernier callipers measure the length in cm?
