Strain

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Q. Figure shows two rods

A

and

B

of same length

L

and same cross-sectional area

S

but of different material having coefficient of linear expansion

α_{1}

and

α_{2}

respectively. They are clamped between two rigid walls, separated by a distance

2 L

. This all refers to temp

t^{\circ} C

. Find the tension in each rod at temp

2 t^{\circ} C

(Take the young’s modulus for the two rods to be

Y_{1}

and

Y_{2}

respectively).