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- - -5- 10-5- - C

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Standard XII

Physics

Relation between Work Done and PE

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? $(α = 5 \times 10^{- 5} /^{\circ} C)$

10^{- 3}

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2 \times 10^{- 3}

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Z e r o

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N o n e

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Solution

The correct option is C $Z e r o$
There is no restriction in the expansion of rod so no stress will be developed.

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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?

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A rod of length 2m rests on smooth horizontal floor. If the rod is heated from 0∘C to 20∘C. Find the longitudinal strain developed? (α=5×10−5/∘C)

The correct option is C ZeroThere is no restriction in the expansion of rod so no stress will be developed.

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? $(α = 5 \times 10^{- 5} /^{\circ} C)$

The correct option is C $Z e r o$
There is no restriction in the expansion of rod so no stress will be developed.