Question

Consider a cube floating inside a jar full of water. Pressure difference between which two points will be the greatest? (Point I and Point II are at same horizontal level)



a)I and II b)I and III c)II and III d)III and IV

Answer 1

The pressure of first points be greatest because when pressure applied against water the pressure increases .

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Answer 2

The pressure difference of 1 and 2 and 3 will be the greatest.

Option 2 and 3

Explanation:

• This is because the pressure difference depends on the depth at which the the point is situated with respect to the depth of the liquid in which it is emerged. Here it is said that 1 and 2 are at the same horizontal level hence their pressure difference will be equal. Similarly point 3 and 4 are also at the same level since it is a cube
• there for the pressure difference between 1, 2 and 3 will be equal and will be highest.