I. Diameter of a small ball bearing.
II. Thickness...
I. Diameter of a small ball bearing.
II. Thickness of a pieces of paper.
III. Diameter of a measuring cylinder.
IV. Length of a piece of wire.
Which of the above can be measured using a micrometer screw gauge?
I, II and IV only
I and II only
II and III only
III and IV only
Correct answer is B
Of all the instruments used in measuring length,the micrometer screw gauge has the highest reading accuracy (0.01 mm), and is therefore used in measuring very small length such as diameter of a small ball bearing, and thickness of a piece of paper.
The pressure of air in a tire is 22.5Nm−2 at 27°C. If the air in the tyre heats up to 47°C,...
The region around a magnet in which magnetic force can be expressed is known as ...
The property of wave shown in the diagram above is? ...
A radioisotope has a decay constant of 10−7s−1. The average life of the radioisotope i...