Question

Answer as fast as possible and get maximum points

Answer 1

Answer:

a) 4%

Explanation:

the detailed answer is in the attachment. Hope it helps.

Answer 2

The volume of the wire is given by, V=πr²l

Thus density of the wire, ρ=m by πr²l

Taking log and then differentiate:

⟹

ρ

Δρ

×100=

m

Δm

×100+2

r

Δr

×100+

L

ΔL

×100

∴

ρ

Δρ

×100=

0.3

0.003

×100+2

0.5

0.005

×100+

6

0.06

×100=4%.

⟹ Percentage error in density is 4%.