Question

please solve this step by step.​

Answer 1

Answer:

4.3%

Explanation:

m = 20.0 kg = Δm = 0.1 kg

d = 0.05 cm = Δd = 0.01 cm

x = 0.100 cm = Δx = 0.001 cm

l = 125 cm = Δl = 1 cm

Now,

Y = (mgl)/(π/4)d²x

Then,

dY/Y = (Δm/m) + (Δl/l) + 2(Δd/d) + (Δx/x)

        = 0.1/20.0 + 1/125 + 0.001/0.05 + 0.001/0.100

       = 0.043

Therefore,

Maximum permissible error in Young's modulus (Y) = 4.3%

Hope it helps!