1.

A physical quantity P is described by therelatiorn1.If the relative errors in the measurementof a, b, c and d respectively, are 2%, 1%,3% and 5%, then the relative error in Pwill be:(1)(2)(3)(4)8%12%32%25 %

Answer»

Relative error = Summation of [absolute power of each variable * Error for each variable]= (0.5*2) + (2*1) + (3*3) + (5*4)= 32 %

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