A) \[0.94\pm 0.00\text{ }cm\]
B) \[0.94\pm 0.01\text{ }cm\]
C) \[0.94\pm 0.02\text{ }cm\]
D) \[0.94\pm 0.005\text{ }cm\]
Correct Answer: C
Solution :
Given, length of rod A is \[{{L}_{A}}=3.25\pm 0.01\] of B is \[{{L}_{B}}=4.19\pm 0.01\] Then, the rod B is longer than rod A by a length \[\Delta l={{L}_{B}}-{{L}_{A}}\] \[\Delta l=(4.19\pm 0.01)-(3.25\pm 0.01)\] \[\Delta l=(0.94\pm 0.02)cm\]
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