For the determination of ‘g’ using a simple pendulum, measurenents

1.	For the determination of ‘g’ using a simple pendulum, measurenents of I and T are required. Error in the measurement of which of these will have a larger effect on the value of ‘g’ thus obtained and why? What is done to minimise this error?
Answer» The formula for ‘g’ is g = 4π²(I/T²) ∴ Δg/g = (ΔI/I) + (2(ΔT/T)) Error in the measurement of T will have a larger effect on the obtained value of ‘g’. To minimise this error, a large number of measurements of T is taken.

For the determination of ‘g’ using a simple pendulum, measurenents of I and T are required. Error in the measurement of which of these will have a larger effect on the value of ‘g’ thus obtained and why? What is done to minimise this error?

Answer»

The formula for ‘g’ is

g = 4π²(I/T²)

∴ Δg/g = (ΔI/I) + (2(ΔT/T))

Error in the measurement of T will have a larger effect on the obtained value of ‘g’. To minimise this error, a large number of measurements of T is taken.

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For the determination of ‘g’ using a simple pendulum, measurenents of I and T are required. Error in the measurement of which of these will have a larger effect on the value of ‘g’ thus obtained and why? What is done to minimise this error?

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