Question

an open u tube contains mercury when 13.6 cm of water is poured into one of the arms of the tube then the mercury rise in the other is

The answer is 0.5 cm
But I am getting only 1 cm

Answer 1

Given height of water = 13.6 cm = 0.136 m

Density of mercury = 13600 kg/m³

Density of water = 1000 kg/m³

Now from pascal law we have

P₁ =P₂

1000 × g × 0.136 = 13600×g× 2x

Here x = rise in the mercury column on the other side of the manometer.

x = (1000 × 0.136)/(2×13600)

x =0.5 m  

Answer 2

Answer:

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