Two teams measure the focal length of the same lens
PHYSICS · Subjective · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
Two teams measure the focal length of the same lens.
• Team A: 15.2 cm, 15.5 cm, 15.3 cm
• Team B: 14.0 cm, 16.4 cm, 15.5 cm
The accepted focal length is 15.4 cm.
Identify which team’s results are more accurate and which team’s results are more precise, and state one plausible source of error responsible for the lower precision.