JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Understanding +4 | -1

The coefficient of linear expansion of crystal in one direction is

\alpha_1

and that in every direction perpendicular to it is

\alpha_2

. The coefficient of cubical expansion is -

View answer and explanation

Correct option: C

\alpha_1+2 \alpha_2

Option C (

\alpha_1+2 \alpha_2

) is correct because the coefficient of cubical expansion is the sum of the linear expansions in all three dimensions.

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