1.

Diameter of the metal ball measured by vernier caliper is 2.34 cm. if least count of vernier is 0.01 cm, calculate percentage error.

Answer»

Given:-

  • DIAMETER of the metal ball MEASURED by vernier caliper is 2.34 cm.
  • If least count of vernier is 0.01 cm.

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To FIND:-

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Solution:-

→ Percentage error = FRACTIONAL error × 100

→ Fractional error = Absolute value ÷ Measured values

→ Fractional error = 0.01 ÷ 2.34

→ Fractional error = 0.00427

Now,

→ Percentage Uncertainty = Fractional error × 100

→ Percentage Uncertainty = 0.00427 × 100

→ Percentage Uncertainty = 0.427%

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Hence,

  • the percentage error is 0.427%.


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