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प्रश्न
State the purpose of ratchet in a screw gauge.
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उत्तर
Ratchet helps to advance the screw by turning it until the object is gently held between the stud and spindle of the screw.
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संबंधित प्रश्न
Name the two scales of a vernier callipers and explain how it is used to measure length correct up to 0.01 cm.
State one use of a screw gauge.
In the vernier callipers, there are 10 divisions on the vernier scale and 1 cm on the main scale is divided into 10 parts. While measuring the length, the zero of the vernier lies just ahead of the 1.8 cm mark and the 4th division of vernier coincides with a main scale division.
(a) Find the length.
(b) If zero error of vernier callipers is -0.02 cm,
What is the correct length ?
Is it possible to increase the degree of accuracy by mathematical manipulations? Support your answer by an example.
Define the term pitch.
State the correction if the negative error is 7 divisions when the least count is 0.01 cm.
The circular scale of a screw gauge has 50 divisions. Its spindle moves by 2 mm on the sleeve, when given four complete rotations calculate
- pitch
- least count
The Wavelength of a particular colour is 5400Å. Express it in nanometer and metre.
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.
How will you find the Zero Error of Vernier Caliper? Explain.
