The external and internal diameters of a hollow cylinder are determined with vernier callipers and the results are recorded as 4.23pm 0.01 cm and 3.89pm 0.01 cm. The thickness of the cylinder wall within the limits of error is

The external and internal diameters of a hollow cylinder are determine

1.	The external and internal diameters of a hollow cylinder are determined with vernier callipers and the results are recorded as 4.23pm 0.01 cm and 3.89pm 0.01 cm. The thickness of the cylinder wall within the limits of error is
Answer» `0.34 PM 0.01cm` `0.34 pm 0.02 CM` `0.34 pm 0.04 cm` `0.17 pm 0.01 cm` ANSWER :D