A bucket water filled upto a height = 15 cm. The bucket is tied to a rope which is passed over a frictionless light pulley and the other end of the rope is tied to a weight of mass which is half of that of the (bucket + water). The water pressure above atmospheric pressure at the bottom is

Options

A. `0.5kPa`
B. `1kPa`
C. `5kPa`
D. None of these

Answer

B

Explanation

`P=hrhog_(eff)" "implies P=hrho(g-a)" "....(1)`
`a=((M-M//2)g)/(M+M//2)`
`a=(g)/(3)" "....(2)`
From (1) `&` (2)
`P=15xx10^(-2)xx10^(3)xx(g-g//3)" "impliesP=150xx(2g)/(3)`
`P=1000Pa" "=P=1kPa`