Question

Select One Option Correct from the following : A student uses a simple pendulum of exactly 1 m length to determine g, the acceleration due to gravity. He uses a stop watch with the least count of 1 s for this and records 40 s for 20 oscillations. For this observation, which of the following statement(s) is (are) true?
(A)Error $\Delta T$ in measuring time period T is 0.05 s.
(B)Error $\Delta T$ in measuring time period T is 1 s.
(C)Percentage error in the determination of g is 5%.
(D)Percentage error in the determination of g is 2.5%.

Answer 1

Select One Option Correct from the following : A student uses a simple pendulum of exactly 1 m length to determine g, the acceleration due to gravity. He uses a stop watch with the least count of 1 s for this and records 40 s for 20 oscillations. For this observation, which of the following statement(s) is (are) true?

(A)Error $\Delta T$ in measuring time period T is 0.05 s.

✴️ (B)Error $\Delta T$ in measuring time period T is 1 s.

(C)Percentage error in the determination of g is 5%.

(D)Percentage error in the determination of g is 2.5%.