A vertical U shaped tube of uniform cros...

A vertical U shaped tube of uniform cross-section contains mercury in both limbs. Another liquid of density `3.4 g/cm^3` is poured In one limb of column length 4 cm as shown in figure. Then difference (h) between the upper level of liquid in both the limbs is `(density of mercury = 13.6 g/cm^3)`

1 cm

2 cm

3 cm

4 cm

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