[填空题]
The lengths of the sicvp q;i9y/b(s go :kxo swch70(;fbh.des of a rectangular plate are measured, and the diagram sho xfs.chb7k( go;:how 0ws the measured values with their uncertainties. What is the percentage error in the area of the plate? %. (Remember to exclude the % symbol with your answer.)
参考答案: 6
本题详细解析: Area involves a multiplication so the percentage uncertainties need to*w 8;)6o5a4qqet0rpjf lw pud be added. Uncertainty in length is one part in 50, i.e. 2%; and in the height it is one part in 25 or 4%. Adding the e8p 4wfojr p*;)t5wqld ua0q6uncertainties gives 6%.