The linear expansivity of brass is 2 x 10 − 5 -5 o C − 1 . If the volume of piece of brass is 2 x 10cm 3 at 0 o C. What will be its volume at 100 o C?

Assessment: JAMB UTME - Physics - 2020 Subject: Physics

Question 1 Report

The linear expansivity of brass is 2 x 10

^{- 5}

-5

^{o} C^{- 1}

. If the volume of piece of brass is 2 x 10cm

^{3}

at 0

^{o}

C. What will be its volume at 100

^{o}

C?

10.06cm³

10.04cm³

10.02cm³

10.08 cm 3

Answer Details

3 x α = V₂−V₁

V1×Δθ

3 x 2 x 10⁻⁵ = V₂−10

100×10

V₂ = (100 x 10 x 3 x 2 10−2) + 10

= 10.6 cm³

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