A copper cube having a length of 10 cm each side is heated from ${10^ \circ }C$ to ${110^ \circ }C$. If $\alpha = 12 \times {10^{ - 6}}/\,{\,^ \circ }C$ change in volume in c.c. is

NEET UG PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

1 Easy

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Application +4 | -1

A copper cube having a length of 10 cm each side is heated from

{10^ \circ }C

{110^ \circ }C

. If

\alpha = 12 \times {10^{ - 6}}/\,{\,^ \circ }C

change in volume in c.c. is

View answer and explanation

Correct option: C

3.6

Option C (3.6) is correct because it is the change in volume calculated using the coefficient of linear expansion and the initial volume.

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60 \mathrm{~cm} \times 50 \mathrm{~cm} \times 20 \mathrm{~cm}

1 \mathrm{~cm}

0^{\circ} \mathrm{C}

40^{\circ} \mathrm{C}

3.4 \times 10^5 \mathrm{~J} \mathrm{~kg}^{-1}

\left. {0.05{\text{W}}{{\text{m}}^{ - 1}}^\circ {{\text{C}}^{ - 1}}} \right)

2 \times 10^5 \mathrm{~J} / \mathrm{sm}^2

127^{\circ} \mathrm{C}

32 \times 10^5 \mathrm{~J} / \mathrm{s}-\mathrm{m}^2

\sigma

+ \frac{1}{2}