A solid of density $900 k g / m^{3}$ floats in oil as shown in the given diagram. The oil floats on water of density $1000 k g / m^{3}$ as shown. The density of oil in $k g / m^{3}$ could be :

Q. Calculate the water pressure and the thrust at the bottom of a tank whose length, width and the depth are

2 m, 1.5 m a n d 1 m

respectively. Density of water is

1000 k g m^{- 3}

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A rectangular pontoon has a width of 6 m, a length of 12 m, and a draught of 1.5 m in fresh water (density = 1000 kg/m3). Its draught in sea water having density of 1025 kg/m3 is

The correct option is C 1.46 mDraught in sea water = draught in fresh water×(ρfresh waterρsea water)=1.5×10001025=1.463 m

A rectangular pontoon has a width of 6 m, a length of 12 m, and a draught of 1.5 m in fresh water (density = 1000 kg/ $m^{3}$ ). Its draught in sea water having density of 1025 kg/ $m^{3}$ is

The correct option is C 1.46 m
Draught in sea water = $d r a u g h t i n f r e s h w a t e r \times (\frac{ρ_{f r e s h w a t e r}}{ρ_{s e a w a t e r}}) = 1.5 \times \frac{1000}{1025} = 1.463 m$