Latest IIT-JEE Aptitude Question SOLUTION: 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 second fore this and records
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 second fore this and records 40 seconds for 20 oscillations. For
this observation, which of the following statement(s) is (are) true ?
(A) error ΔT in measuring T, the time period, is 0.05 seconds
(B) error ΔT in measuring T, the time period, is 1 second
(C) percentage error in the determination of g is 5%
(D) percentage error in the determination of g is 2.5%.