The length of a side of a metallic cube at 20oC is 5.0cm. Given that the linear expansivity of the metal is 4.0 x 10-5k-1, find the volume of the cube at 120oC .
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Correct Answer: Option A
Explanation:
Y = \(\frac{V_2 - V_1}{V_1 \times \theta}\)
3 x 4 x 10-5 = \(\frac{V_2 - 125}{125 \times (120 - 20)}\)
V2 = 126.50cm3
Y = \(\frac{V_2 - V_1}{V_1 \times \theta}\)
3 x 4 x 10-5 = \(\frac{V_2 - 125}{125 \times (120 - 20)}\)
V2 = 126.50cm3