Question
Question: What is the relative error in g calculated from \(T = 2\pi\sqrt{\mathcal{l}/g}\)? Given relative err...
What is the relative error in g calculated from T=2πl/g? Given relative errors in T and l are ± x and ± y respectively-
A
x + y
B
2x – y
C
2x + y
D
x – 2y
Answer
2x + y
Explanation
Solution
T2 = 4p2 gl Ž g = T24π2l
gΔg× 100 = lΔl× 100 + 2 TΔT× 100