Which of the following substances expands/contracts negligibly on heating?.

Glass

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steel

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Brass

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Invar

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Solution

The correct option is D
Invar

Invar, an alloy with co-efficient of linear expansion 0.9 x 10^-6 per ^oC shows negligible expansion.

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Similar questions

"A substance expands on heating and contracts on cooling”. Justify this statement. [2 MARKS]

0^{\circ} C

4^{\circ} C

4^{\circ} C

40^{\circ} C

Water on heating from 0 $^{\circ}$ C to 4 $^{\circ}$ C contracts and on further heating it expands.

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