Physics And Measurement Question 291

Question: In a simple pendulum experiment, the maximum percentage error in the measurement of length is 2% and that in the observation of the time- period is 3%. Then the maximum percentage error in determination of the acceleration due to gravity g is

Options:

A) 5%

B) 6%

C) 1%

D) 8%

Show Answer

Answer:

Correct Answer: D

Solution:

[d] As we know, time period of a simple pendulum

T=2πLgg=4π2LT2

The maximum percentage error in g Δgg×100=ΔLL×100+2(ΔTT×100)

=2%+2(3%)=8%



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