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प्रश्न
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उत्तर
Two limitations of metre rule
(a). There comes an error of parallax due to the thickness of the metre rule.
(b). We cannot use metre rule for measuring small thickness.
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संबंधित प्रश्न
Describe the procedure to measure the diameter of a wire with the help of a screw gauge.
Define metre in terms of the wavelength of light.
When does a vernier callipers has the negative error?
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.
What do you understand by the following term as applied to micrometre screw gauge?
Thimble
The following figure shows the reading of a vernier caliper used for measuring the thickness of a metal sheet.
(i) Find the least count of the instrument.
(ii) Calculate the thickness of the metal sheet.
How will you measure the least count of vernier caliper?
The precision of vernier calipers is ______ mm.
How will you find the Zero Error of Vernier Caliper? Explain.
