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1) a crystal has a coefficient of expansion 13* src=/equations/2008/12/17/52e19648-114a-4ac8-8c45-86eb26e71fe7.png in one direction and 231 * src=/equations/2008/12/17/52e19648-114a-4ac8-8c45-86eb26e71fe7.pngin every direction at right angles to it then the cubical coefficient of expansion is:









2) a barometer having a brass scale reads 77.24 cm at a temp of 20c the scale is graduated to b accurate at 0c





what would b the reading at 0c





coeff. of cubical expansion of mercury= 18 * src=/equations/2008/12/17/68d0c3bd-e6a8-422c-b817-af46a64dda45.png





coeff of linear expansion of brass= 19 *src=/equations/2008/12/17/5321fc96-b816-405e-ab3a-faa51e16613e.png

Kevin Nash , 11 Years ago
Grade upto college level
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