Question

An open u tube of uniform cross section contains mercury if 27.2cm

Answer 1

When the water is poured into one limb the mercury level in that limb decreases by h height and in creases in the other by h

Therefore pressure of decreased hieght h and the same level in other limb is sme

And hence the height for the second limb should be taken as 2h

P○ + 27.2×1×g=13.6×2h×g

27.2=13.6×2h

2h=2h=1

Answer 2

Answer:

I hope u got ur answer...