Q. The formula for linear expansion is __________.

रैखिक विस्तार का सूत्र __________ है।

A
ΔL = αLΔT
B
ΔV = βVΔT
C
ΔA = γAΔT
D
ΔL = αΔTL

Explanation

This is the standard formula for linear expansion:

  • ΔL = change in length

  • α = coefficient of linear expansion

  • L = original length

  • ΔT = temperature change
    It shows that expansion depends linearly on the material's properties, the original size, and the temperature change.

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