A) 1.2 cm
B) 2.35 cm
C) 0.56 cm
D) 0.8 cm
Correct Answer: C
Solution :
If the rise of level in the right limb be x cm. the fall of level of mercury in left limb be 4x cm because the area of cross section of right limb is 4 times as that of left limb. \[\therefore \] Level of water in left limb is (36 + 4x) cm. Now equating pressure at interface of Hg and water (at A' B') \[(36+4x)\times 1\times g=5x\times 13.6\times g\] By solving we get x = 0.56 cm.You need to login to perform this action.
You will be redirected in
3 sec