A girl uses a simple pendulum of 1 m length to calculate the acceleration due to gravity g. She use a stop watch with the least count of sec for this and records 60 sec for 30 oscillations. For observation, which of the following statements is TRUE?
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Answered by
0
Answer:
sorry I don't know the correct answer
Answered by
0
Answer:
We know that,
T
ΔT
=
t
Δt
=
40
1
T=2sec/ Oscillation
ΔT=0.05sec
We have g=
T
2
4π
2
Ln
2
g
Δg
=
T
2ΔT
⇒ % error =
T
2ΔT
×100
We know,
T
ΔT
=
40
1
T
2ΔT
×100=5%
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