996i think answer is (C)0.1m
an open and wide glass tube is immersed vertically in such a way that the length 0.05m extends above mercury level. the open end of the tube is closed and the tube is further raised by 0.43m . the length of air column above mercury level in the tube will be?
take P(atm) = 76cm of Hg
a 0.215m
b 0.2m
c 0.1m
d 0.4m
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