Prelab Brief
To measure the dimensions of a given object accurately using a Vernier caliper and to understand least count, zero error, and scale reading.
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Theory
Learn to measure length precisely using a virtual Vernier caliper with real scale reading. To measure the dimensions of a given object accurately using a Vernier caliper and to understand least count, zero error, and scale reading.
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Formula
Principle: To measure the dimensions of a given object accurately using a Vernier caliper and to understand least count, zero error, and scale reading.
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Aim
To measure the dimensions of a given object accurately using a Vernier caliper and to understand least count, zero error, and scale reading.
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Apparatus
- Vernier caliper
- Cylinder
- Coin
- Rectangular block
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Procedure
- Close the jaws completely and check for zero error.
- Place the object between the jaws.
- Slide the movable jaw until it gently touches the object.
- Read the Main Scale Reading (MSR) — the mark just before the Vernier zero.
- Find the Vernier Scale Division (VSD) that coincides with any main scale mark.
- Calculate: Reading = MSR + (VSD × Least Count).
- Record the observation and repeat for other objects.
Pre-Lab Questions
What is the main aim of the Vernier Caliper Measurement Experiment?
Which principle is demonstrated in the Vernier Caliper Measurement Experiment?
What apparatus is required for this experiment?
Why is Vernier caliper used in this experiment?
What formula or relationship is verified in this experiment?
What precaution should be followed while performing this experiment?
What conclusion can be drawn from the Vernier Caliper Measurement Experiment?