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Question
State three uses of the vernier callipers.
Solution
Three uses of vernier callipers are
(a) Measuring the internal diameter of a tube or a cylinder.
(b) Measuring the length of an object.
(c) Measuring the depth of a beaker or a bottle.
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RELATED QUESTIONS
State one use of a screw gauge.
(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.
Up to how many decimal places can a common vernier callipers measure the length in cm?
Define the term pitch.
The circular scale of a screw gauge has 100 divisions. Its spindle moves forward by 2.5 mm when given five complete turns. Calculate
- pitch
- least count of the screw gauge
State the formula for calculating the pitch of screw.
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.
