Question

Question 11 please solve it

Answer 1

Last Length (L) = Initial Length (L) + Total Length

Tension in the wire will be the difference between body weight and liquid (oil).

T = MG - ρgV (1)

here

I have mass of metal, ρ is the density of oil and the amount of V metal is

A small length segment will be given as the length of DX

E = tdx / airy

where

DX is a small length segment, A is the area of ​​cross-section and Y is the Yoga modulus.

So, (1)

E = T (DX / AV) = (MG - ρgV) (DX / AV)

Or

E = (MG - ρgV) (1 / airy). dx

Thus, the total length can be calculated by integrating the entire length of the wire.

So,

E = (MG - ρgV). (1 / AY). L

We can calculate the expansion by replacing the appropriate values ​​and then increasing the final length