Advertisements
Advertisements
Question
What is the least count in the case of the following instrument?
vernier calipers
Advertisements
Solution
The least count of the following is
Vernier call pers = 0.01 cm
APPEARS IN
RELATED QUESTIONS
Describe in steps, how would you use a vernier callipers to measure the length of a small rod?
When a screw gauge with a least count of 0.01 mm is used to measure the diameter of a wire, the reading on the sleeve is found to be 1 mm and the reading on the thimble is found to be 27 divisions.
(i) What is the diameter of the wire in cm?
(ii) If the zero error is +0.005 cm, what is the correct diameter?
What do you understand by the term zero error?
Figure shows a screw gauge in which circular scale has 200 divisions. Calculate the least count and radius of the wire.

A micrometre screw gauge having a positive zero error of 5 divisions is used to measure diameter of a wire, when reading on the main scale is 3rd division and the 48th circular scale division coincides with baseline. If the micrometer has 10 divisions to a centimetre on the main scale and 100 divisions on a circular scale, calculate
- Pitch of screw
- Least count of screw
- Observed diameter
- Corrected diameter.
State the formula for calculating the pitch of screw.
What is the least count in the case of the following instrument?
Stopwatch
The precision of vernier calipers is ______ mm.
