Question

Two wires of same material and radius have their length in ratio of 1:2. If these were stretched by the same force , the strain produced will be in the ratio

Answer 1

The ratio of strain will be 1:1

We know that the young's modulas is given by,

Y = stress / strain = (F/A) / strain

=> strain = F/AY

where,

F = force applied

A = area of cross section

since the wires are made of same material so there young's modulus will be same.

Also the force applied and the area of cross section is same(because radius is same)

Hence,

strain₁/strain₂ = F₁A₂Y₂/F₂A₁Y₁ = 1

Hence the ratio of strain will be 1:1 despite of the ratio of length.

Answer 2

Answer:

The ratio is 1 : 1

Explanation:

Plz view the attachment for the answer.....