question_answer

In an experiment to measure the height of a bridge by dropping stone into water underneath if the error in measurement of time is 0.1 s at the end of 2 s, then the error in estimation of height of bridge will be:

A)  0.49 m                 

B)         0.98 m

C)  1.37m                  

D)         1.96m

E)  2.12m