Home Physics Properties of Matter Thermal Expansion A solid metallic cube having total surface a…
Physics Properties of Matter Thermal Expansion Single Correct MCQ
Published on: September 12, 2026

A solid metallic cube having total surface area 24 m 2 is uniformly heated. If its temperature is increased by 10°C, calculate the increase in volume of the cube (Given = 5.0 x 10 -4 °C -1 )

A
2.4x10 6 cm 3
B
1.2 x10 5 cm 3
C
6.0x10 4 cm 3
D
4.8x10 5 cm 3

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Text Solution

Verified by Experts
The correct answer is:
B

Increase in volume

So

2 Total surface area = 6a 2 , where a is side length

24 = 6a 2 a= 2m

Volume V 0 = (2) 3 = 8m 3

V = (3x5x10 -4 ) (8)x10

= 1.2x10 5 cm 3

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