Two identical solid blocks

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

Problem

Two identical solid blocks, one of brass with coefficient of volume expansion 7.5×10−5 K−17.5\times10^{-5}\,\text{K}^{-1} and the other of steel with 3.5×10−5 K−13.5\times10^{-5}\,\text{K}^{-1}, are heated through the same temperature rise. Which statement is correct regarding their fractional volume changes? (a) Neither block undergoes any volume change (b) Both blocks undergo the same fractional volume change (c) The brass block undergoes the larger fractional volume change (d) The steel block undergoes the larger fractional volume change

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