CIE Physics Paper-1: Specimen Questions 31 - 32 of 109
Question number: 31
A glass tank contains some water. If length QR and the width RS of the tank are known. What other distance must be known to calculate the volume of the water?
Here in given figure, water inside the glass tank filled till height ST.
Now, to find the volume we must know about Length, breath and height.
Here length and width QR and RS is given respectively.
And height is ST = RU
Here only ST is unknown
So, we need ST distance.
Question number: 32
4 divers are there, 2 in sea water and 2 in fresh water. Which diver will face greatest pressure known that sea water is denser than fresh water?
Pressure in liquid we can define as
Where ρ = Density of liquid
g = Gravitational acceleration
h = Height above the point at which we measure the pressure
In this case density of sea water is denser fresh water and height of diver B is more.
Thus on diver B is there the greatest pressure.