In an experiment to investigate Boyle's law, a student uses an analogue pressure gauge to measure the pressure of a trapped gas. A section of the gauge's scale is shown below:
The student records a single pressure measurement of 101.6 kPa.
What is the uncertainty of this measurement?
±0.1 kPa\pm 0.1\text{ kPa}±0.1 kPa
±0.05 kPa\pm 0.05\text{ kPa}±0.05 kPa
±0.2 kPa\pm 0.2\text{ kPa}±0.2 kPa
±0.4 kPa\pm 0.4\text{ kPa}±0.4 kPa