Advertisements
Advertisements
Question
What is the least count in the case of the following instrument?
Metre scale
Solution
Least count of the following is
Metre scale = 0.1 cm
APPEARS IN
RELATED QUESTIONS
A vernier callipers has a zero error of + 0.06 cm. Draw a neat labelled diagram to represent it.
Fig., below shows the reading obtained while measuring the diameter of a wire with a screw gauge. The screw advances by 1 division on the main scale when circular head is rotated once.
Find:
(i) Pitch of the screw gauge,
(ii) Least count of the screw gauge and
(iii) The diameter of the wire.
The least count of a vernier callipers is 0.0025 cm and it has an error of + 0.0125 cm. While measuring the length of a cylinder, the reading on the main scale is 7.55 cm, and the 12th vernier scale division coincides with the main scale. Calculate the corrected length.
The least count of a vernier callipers is 0.01 cm and it has an error of + 0.07 cm. While measuring the radius of a sphere, the main scale reading is 2.90 cm and the 5th vernier scale division coincides with the main scale. Calculate the correct radius.
What do you understand by the term zero error?
State the formula for calculating the least count of screw.
The Wavelength of a particular colour is 5400Å. Express it in nanometer and metre.
What is the zero error of a screw gauge?
State whether true or false. If false, correct the statement.
With the help of vernier caliper we can have an accuracy of 0.1 mm and with screw gauge we can have an accuracy of 0.01 mm.
