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प्रश्न
Name the measuring employed to measure the diameter of a pencil.
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उत्तर
Measuring employed to measure the following
The diameter of a pencil = Screw Gauge
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संबंधित प्रश्न
Which of the following measures a small length to high accuracy : metre rule , vernier callipers or screw gauge?
(a) A vernier scale has 10 divisions. It slides over the main scale, whose pitch is 1.0 mm. If the number of divisions on the left hand of zero of the vernier scale on the main scale is 56 and the 8th vernier scale division coincides with the main scale, calculate the length in centimetres.
(b) If the above instrument has a negative error of 0.07 cm, calculate the corrected length.
(a) A vernier scale has 20 divisions. It slides over the main scale, whose pitch is 0.5 mm. If the number of divisions on the left hand of the zero of vernier on the main scale is 38 and the 18th vernier scale division coincides with the main scale, calculate the diameter of the sphere, held in the jaws of vernier callipers.
(b) If the vernier has a negative error of 0.04 cm, calculate the corrected radius of the sphere.
State the correction if the positive error is 7 divisions when the least count is 0.01 cm.
State the correction if the negative error is 7 divisions when the least count is 0.01 cm.
Which part of vernier callipers is used to measure the internal diameter of a hollow cylinder?
What is the least count in the case of the following instrument?
Stopwatch
Consider the following case where the zero of vernier scale and the zero of the main scale are clearly seen. If L.C. of the vernier calipers is 0.01 cm, write the zero error and zero correction of the following.
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.
