Neco 2019 Physics Question 1

Practice practical question 1 from the 2019 Neco Physics examination. This question covers Measurements and Units .

Neco 2019 Physics Practical

Topic: Measurements and Units

Question 1 NECO • 2019 • PHYSICS • practical

A student is required to determine the length of a metal rod using a vernier caliper whose least count is 0.01 cm. The zero error of the caliper is +0.02 cm (i.e., the reading is 0.02 cm more than the true zero). The student records the following five successive readings (in cm): 12.34, 12.36, 12.35, 12.33, 12.35.

( a )

Calculate the mean of the five readings.

( b )

Correct the mean length for the zero error and state the final measured length of the rod.

( c )

Calculate the percentage uncertainty of the measurement using the least count of the instrument.

( d )

Mention two possible sources of error in this experiment and suggest one method to minimise each.

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This is Neco 2019 Physics Question 1. It is one of the practical questions from the 2019 Neco Physics examination.

The question covers Measurements and Units .

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