A cylindrical tube of length 100cm. Contains some mercury inside. If the length of remaining air column remains constant at all temperatures, the height of mercury is (neglect the expansion of cross section) ( gamma_(R) of Hg = 18 xx 10^(-5)//""^(@) C , gamma_(g) of tube = 2.7 xx 10^(-5)//""^(@) C)

A cylindrical tube of length 100cm. Contains some mercury inside. If t

1.	A cylindrical tube of length 100cm. Contains some mercury inside. If the length of remaining air column remains constant at all temperatures, the height of mercury is (neglect the expansion of cross section) ( gamma_(R) of Hg = 18 xx 10^(-5)//""^(@) C , gamma_(g) of tube = 2.7 xx 10^(-5)//""^(@) C)
Answer» 10cm 15cm 7.5cm 12cm Answer :B