A micrometer is employed to measure the diameters of two cylinders. Diameter of first cylinder $= 12.78 \pm 0.02\ \text{mm}$ Diameter of second cylinder $= 16.24 \pm 0.03\ \text{mm}$ The difference between the two diameters is then worked out. What is the uncertainty in this difference?
- A$\pm 0.01\ \text{mm}$
- B$\pm 0.02\ \text{mm}$
- C$\pm 0.03\ \text{mm}$
- D$\pm 0.05\ \text{mm}$