A metal of volume 40 cm3 is heated from 30 °c to 90 °c, the…

A metal of volume 40 cm3 is heated from 30 °c to 90 °c, the increase in volume is
  • A.
    0.12 cm3
  • B.
    4.00 cm3
  • C.
    1.20 cm3
  • D.
    0.40 cm3
  • E.
    no correct option
Correct Answer: Option E
Explanation

increase in volume, DV = RV1 ∆ θ = 3α Vsub>1 Dθ
= 3 x 2.0 X 10-5 x 40 x (90 – 30)
= 6 x 10-5 x 40 x 60
0.144 cm3
∴ No correct option

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