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प्रश्न
Draw a neat and labelled diagram of a vernier callipers. Name its main parts and state their functions.
उत्तर
Diagram of vernier callipers:
Main parts and their functions:
Main scale: It is used to measure length correct up to 1 mm.
Vernier scale: It helps to measure length correct up to 0.1 mm.
Outside jaws: It helps to measure length of a rod, diameter of a sphere, external diameter of a hollow cylinder.
Inside jaws: It helps to measure the internal diameter of a hollow cylinder or pipe.
Strip: It helps to measure the depth of a beaker or a bottle.
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संबंधित प्रश्न
What do you mean by zero error of a screw gauge? How is it accounted for?
Why is the metre length in terms of the wavelength of light considered more accurate?
State the formula for calculating length if:
Number of vernier scale division coinciding with the main scale and number of division of main scale on the left-hand side of zero of vernier scale is known.
When does a vernier callipers has the negative error?
Which part of vernier callipers is used to measure the internal length of a hollow cylinder?
Figure shows a screw gauge in which circular scale has 200 divisions. Calculate the least count and radius of the wire.
In the following figure, the pitch of the screw is 1 mm. Calculate:
(i) the least count of screw gauge and
(ii) the reading represented in the figure.
