Question

A physical quantity P is related to four observables a, b, c and d as
P=a3b2÷✓cxd
The percentage errors measurement in a,b,c and are 1% 3% 4% and 2% respectively what is the percentage error in the quantity P?​

Answer 1

Explanation:

p= a3 ×b2/ √c×d

∆a/a %= 1

∆b/b%= 3

∆c/c%=4

∆d/d%=2

∆p/p%= 3×1+2×3+1/2×4+1/2 ×2

= 12%

Error is present in quantity p

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