A person measures the depth of a well by measuring the time

Last updated: 6/11/2023

A person measures the depth of a well by measuring the time interval between dropping a stone and receiving the sound of impact with the bottom of the well The error in his measurement of time is 8T 0 01 seconds and he measures the depth of the well to be L 20 meters Take the acceleration due to gravity g 10 ms and the velocity of sound is 300 ms Then the fractional error in the measurement 8L L is closest to 2 A 1 C 3 B 5 D 0 2