Density of liquid water \\\\(={1gcm}^{-3}\\\\)Density of water vapour \\\\(={0.0006gcm}^{-3}\\\\)Mass of \\\\(1000\\ ml\\\\) stream \\\\(=1000\ imes 0.0006=0.6g\\\\)\\\\(\\because\\\\) Volume of liquid water \\\\(=\\cfrac {\ ext{mass of 1000ml stream}}{\ ext{density of liquid water}}\\\\)\\\\(V=\\cfrac {0.6g}{1\\ g.cm^{-3}}\\\\)\\\\(V=0.6cm^3\\\\)\\\\(\ herefore\\\\) The answer is option C.