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प्रश्न
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?
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उत्तर
Thickness of the pencil (observed reading) = 1.4 mm
Zero error = + 0.02 cm = + 0.2 mm
Correct reading = Observed reading − Zero error (with sign)
= 1.4 mm − 0.2 mm
= 1.2 mm
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संबंधित प्रश्न
Define the term 'Vernier constant'.
State three uses of the vernier callipers.
Name the part of the vernier callipers which is used to measure the following
Thickness of a pencil.
What do you mean by zero error of a screw gauge? How is it accounted for?
Which part of vernier callipers is used to measure the internal diameter of a hollow cylinder?
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
What is the function of ratchet in the screw gauge?
What do you understand by the following term as applied to screw gauge?
Zero error
What is meant by the pitch of a screw gauge? The pitch of a screw is 1 mm.
Find the reading of the instrument shown in the following figure.
