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Questions  

A crystal has a coefficient of linear expansion 12 × 10-6 /°C in one direction and 244 × 10-6 /°C in every direction at right angles to it . Then  the coefficient of cubical expansion of crystal is

a
450×10−6/0C
b
500×10−6/0C
c
244×10−6/0C
d
36×10−6/0C

detailed solution

Correct option is B

g=ax+ay+ay

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