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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
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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
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संबंधित प्रश्न
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(ii) Least count of the screw gauge and
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Thimble scale
State whether the following statement is true or false by writing T/F against it.
The diameter of a wire can be measured more accurately by using vernier calipers than by a screw gauge.
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