Two students `A` & `B` carried out an experiment to measure the time period of a pendulum which in actual is `5.40s`. Their experimental readings are as follows`:`
`{:(StudentA," ",StudentB,),(5.43s," ",5.32s,),(5.37s," ",5.34s,),(5.41s," ",5.30s,),(5.52s," ",5.29s,),(5.51s," ",5.33s,):}` Then

Options

A. Student `A` is more precise but less accurate
B. Student `B` is more precise but less accurate
C. Students `A` is more precise as well as accurate
D. Students `B` is more precise as well as accurate

Answer

B

Explanation

The varition of B is 0.05 s out of 5 readings while that of A is 0.15 s out of 5 readings so B is more precise. The average reading of A is `5.448approx5.45s` & that of B is `5.316 "sec"approx5.32` so A is more accurate.