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प्रश्न
What do you understand by the following term as applied to micrometre screw gauge?
Thimble scale
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उत्तर
It is also known as a circular scale. A scale marked on the tapered end of a hollow cylinder, which can move over the sleeve cylinder, is known as a thimble scale.
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संबंधित प्रश्न
Describe in steps, how would you use a vernier callipers to measure the length of a small rod?
Name the part of the vernier callipers which is used to measure the following
Internal diameter of a mug
A screw gauge has a least count 0.001 cm and zero error +0.007 cm. Draw a neat diagram to represent it.
Describe the procedure to measure the diameter of a wire with the help of a screw gauge.
Fig., below shows the reading obtained while measuring the diameter of a wire with a screw gauge. The screw advances by 1 division on the main scale when circular head is rotated once.
Find:
(i) Pitch of the screw gauge,
(ii) Least count of the screw gauge and
(iii) The diameter of the wire.
In figure for vernier callipers, calculate the length recorded.
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.
What is the need for measuring length with vernier callipers?
Define the term least count as applied to a vernier callipers.
A micrometre screw gauge has a negative zero error of 7 divisions. While measuring the diameter of a wire the reading on the main scale is 2 divisions and 79th circular scale division coincides with baseline.
If the number of divisions on the main scale is 10 to a centimetre and circular scale has 100 divisions, calculate
- pitch
- observed diameter
- least count
- corrected diameter.
