A rod of length 2 m rests on smooth horizontal floor- If the rod is heated from 0-C to 20-C- Find the longitudinal strain developed-

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Standard XIII

Physics

Longitudinal Strain

A rod of leng...

Question

A rod of length $2 m$ rests on smooth horizontal floor. If the rod is heated from $0^{\circ} C$ to $20^{\circ} C$ . Find the longitudinal strain developed?

10^{- 3}

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2 \times 10^{- 3}

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Zero

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None

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Solution

The correct option is C Zero
We known that, when rod is freely expand,
stress produced is $0$

As
stress $\propto$ strain
so, strain $= 0$

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A rod of length 2 m rests on smooth horizontal floor. If the rod is heated from 0∘C to 20∘C. Find the longitudinal strain developed?

The correct option is C ZeroWe known that, when rod is freely expand, stress produced is 0 As stress ∝ strain so, strain =0

A rod of length $2 m$ rests on smooth horizontal floor. If the rod is heated from $0^{\circ} C$ to $20^{\circ} C$ . Find the longitudinal strain developed?

The correct option is C Zero
We known that, when rod is freely expand,
stress produced is $0$

As
stress $\propto$ strain
so, strain $= 0$