Question

to study the flow of a liquid through a narrow tube following formula is used n=Pr4/Vl . where the letters having their usual meaning . the value of P, r, V, l are measured to 76 cm Hg, 0.28 cm , 7.2 cm3 s-2 and 0.1 respectively, find the percentage error in the value of n.

Answer 1

Answer:

The formula to study the flow of the liquid is n = P*r^4/V*I hence by separating the formula according to the rule of error we will get that.

Δn = ΔP + 4Δr - ΔV - ΔI.

So, the value of Δn = ΔP + 4Δr - (ΔV + ΔI).

Now, putting the values from the question given.

Δn = 76 + 4*0.28 -(7.2 + 0.1).

Δn =  76 + 1.12 - 7.3.

Δn will be equal to 69.82.

Hence the percentage error of the value of n will be 69.82%.

Answer 2

Answer:

23.28

Explanation:

it is correct answer