Question

If the Mercury in the barometer is replaced by water ,what will be the resulting height of the water column ?density of water =1000kgm/m3 density of Mercury =13600kg/m3 .
Here are the options...
1)0.76m 2)10m 3)10.3m 4) 11m

Answer 1

The answer is 10.3 m...
Bcoz

Answer 2

Dear Student,

● Answer -

(3) 10.3 m

◆ Explanation -

Given that mercury is replaced by water at same pressure.

Pw = Pm

ρw.g.hw = ρm.g.hm

ρw.hw = ρm.hm

hw = ρm.hm/ρm

hw = 760 × 13.6 / 1

hw = 10336 mm

hw = 10.336 m

Hence, height of water column having same pressure as mercury column is 10.336 m.

Thanks dear. Hope this is helpful to you...