What is meant by zero error of a vernier callipers? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?
Measurements
190 Likes

Question

What is meant by zero error of a vernier callipers? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?

KnowledgeBoat · Accepted Answer

Sometimes due to mechanical error in vernier callipers, the zero mark of the vernier scale does not coincide with the zero mark on the main scale. Hence, the vernier callipers is said to have a zero error. In order to find the zero error, we note the division of the vernier scale which coincides with any division of the main scale. The number of this vernier division when multiplied by the least count of the vernier gives the zero error.

What is meant by zero error of a vernier callipers? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement? Measurements and Experimentation, Concise Physics Solutions ICSE Class 9.

For example if the least count is 0.01 cm and the 6th division of the vernier scale, coincides with a main scale division then. we get, Hence, zero error = 0.06 cm. In order to correct the measurement of the vernier callipers with zero error, the zero error with proper sign is subtracted from the observed reading. Hence, Correct reading = observed reading – zero error (with sign)

Physics

What is meant by zero error of a vernier callipers? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?

Measurements

Related Questions

A screw gauge has a least count 0.001 cm and zero error + 0.007 cm. Draw a neat diagram to represent it.

What is backlash error? Why is it caused? How is it avoided?

Draw a neat labelled diagram of a vernier callipers. Name its main parts and state their functions.

Describe in steps, how would you use a vernier callipers to measure the length of a small rod?