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प्रश्न
Name the measuring employed to measure the thickness of a paper.
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उत्तर
Measuring employed to measure the following
The diameter of a needle = Screw Gauge
Because screw gauge Is more accurate and can measure the thicknesses which metre scale and vemler calliper cannot.
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संबंधित प्रश्न
State the purpose of ratchet in a screw gauge.
The pitch of a screw gauge is 1 mm and the circular scale has 100 divisions. In measurement of the diameter of a wire, the main scale reads 2 mm and 45th mark on the circular scale coincides with the base line. Find
(i) The least count and
(ii) The diameter of the wire.
Why is the metre length in terms of the wavelength of light considered more accurate?
The least count of a vernier callipers is 0.0025 cm and it has an error of + 0.0125 cm. While measuring the length of a cylinder, the reading on the main scale is 7.55 cm, and the 12th vernier scale division coincides with the main scale. Calculate the corrected length.
When does a vernier callipers has the positive error?
Which part of vernier callipers is used to measure the internal length of a hollow cylinder?
What do you understand by the following term as applied to screw gauge?
Negative zero error
State whether the following statement is true or false by writing T/F against it.
A metre scale can measure a length of 6.346 cm.
