Advertisements
Advertisements
प्रश्न
The following diagrams (Fig. 5) show the use of a vernier caliper under three different situations. Study the diagrams carefully and note down the vernier readings in each case.
(a) Measuring the diameter of the rod
(b) Measuring Internal diameter of a cavity
(c) Measuring depth of a cavity
Advertisements
उत्तर
(a) Measuring the diameter of the rod
(b) Measuring Internal diameter of a cavity
(c) Measuring the depth of a cavity
Least count of vernier caliper = 0.01 cm
(i) Main scale reading = 5.5 cm
Vernier scale division coinciding with main scale = 6 Vernier scale reading = 6 × 0.01 cm = 0.06 cm
Diameter of rod = 5.5 + 0.06 = 5.56 cm
(ii) Main scale reading = 1.6 cm
Vernier scale division coinciding with main scale = 5
Vernier scale reading = 5 × 0.01 cm = 0.05 cm
Internal diameter of a cavity = 1.6 + 0.05 = 1.65 cm
(iii) Main scale reading = 3.1 cm
Vernier scale division coinciding with main scale = 5 Vernier scale reading = 5 × 0.01 cm = 0.05 cm
Depth of a cavity = 3.1 + 0.05 = 3.15 cm
APPEARS IN
संबंधित प्रश्न
The wavelength of light of a particular colour is 5800 Å.
Express it in metre.
The thimble of a screw gauge has 50 divisions. The spindle advances 1 mm when the screw is turned through two revolutions.
(i) What is the pitch of the screw gauge?
(ii) What is the least count of the screw gauge?
Define metre according to the old definition.
Define metre in terms of the wavelength of light.
Figure shows the position of vernier scale while measuring the external length of a wooden cylinder.
- What is the length recorded by the main scale?
- Which reading of vernier scale coincides with the main scale?
- Calculate the length.
In figure for vernier callipers, calculate the length recorded.
State the formula for calculating length if:
The reading of the main scale is known and the number of vernier scale divisions coinciding with the main scale is known.
The level of water in a measuring cylinder is 12.5 ml. When a stone is lowered in it, the volume is 21.0 ml. Find the volume of the stone.
Explain the term least count of a screw gauge. How are they determined?
