When main scale reading of the Vernier callipers
is 4.5cm, the least count is .01cm and 4th
division of vernier coincides with the main scale
division, find the observed reading.
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Answer:
The observed reading will be 4.54 cm.
Explanation:
The main scale reading of the vernier calipers = 4.5 cm
The least count of the vernier calipers = 0.01 cm
4th division of the vernier scale coincides with the main scale. So the vernier scale reading = 4
Observed reading can be found using the following equation:
Observed reading = main scale reading + ( vernier scale reading × least count)
Observed reading = 4.5 + (4 × 0.01)
= 4.54 cm
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