b + b ∆ a + ( ∆ a ) ( ∆ b ) = a α l b ∆ T + b α l a ∆ T + ( α l ) ab ( ∆ T ) = α l ab ∆ T ( + α l ∆ T ) = α l A ∆ T ( + α l ∆ T )
📖 generic · CBSE Class 11 English medium · PHYSICS · Page 1question
T HERMAL P ROPERTIES OF M ATTER · Part 9
Chapter 10: THERMAL PROPERTIES OF MATTER · PHYSICS
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