A crystal has linear coefficient of expansion $$9$$×$$10$$−$$5$$,$$12$$×$$10$$−$$5$$,$$7$$×$$10$$−$$5/K$$ along three mutually perpendicular directions the volume expansion coefficient is

Correct option is 428×10−5/K

Questions

A crystal has linear coefficient of expansion $9 \times 10^{- 5}, 12 \times 10^{- 5}, 7 \times 10^{- 5} / K$ along three mutually perpendicular directions the volume expansion coefficient is

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detailed solution

Correct option is D

coefficient of volume expansion of crystal is γ=αx+αy+αz αx,αy,αz coefficient of linear expansion of crystal along mutually perpendicular directions γ=9×10−5+12×10−5+7×10−5 γ=28×10−5/K

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A crystal has linear coefficient of expansion 9×10−5,12×10−5,7×10−5/K along three mutually perpendicular directions the volume expansion coefficient is

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Ready to Test Your Skills?

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A crystal has linear coefficient of expansion $9 \times 10^{- 5}, 12 \times 10^{- 5}, 7 \times 10^{- 5} / K$ along three mutually perpendicular directions the volume expansion coefficient is