The density of aluminium is at

PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

The density of aluminium is

2.70\,\text{g}\,\text{cm}^{-3}

20\,^{\circ}\text{C}

. Its coefficient of volume expansion is

7.5\times10^{-5}\,\text{K}^{-1}

. Calculate its density at

120\,^{\circ}\text{C}

(take mass as constant). (a)

2.72\,\text{g}\,\text{cm}^{-3}

(b)

2.68\,\text{g}\,\text{cm}^{-3}

(c)

2.64\,\text{g}\,\text{cm}^{-3}

(d)

2.66\,\text{g}\,\text{cm}^{-3}