English

The Pressure P1 At the Top of a Dam and P2 At a Depth H Form the Top Inside Water (Density P) Are Related as :

Advertisements
Advertisements

Question

The pressure P1 at the top of a dam and P2 at a depth h form the top inside water (density p) are related as : 

Options

  • P1 > P2

  • P1 = P2

  • P1 -  P2 = h ρ g

  • P2 -  P1 = h ρ g

MCQ
Advertisements

Solution

The pressure P1 at the top of a dam and P2 at a depth h form the inside water (density p) are related as : P2 -  P1 = h ρ g

shaalaa.com
  Is there an error in this question or solution?

RELATED QUESTIONS

Fill in the blank with suitable word :
It is the................. force which makes objects appear lighter in water. 


A body floats in a liquid when its weight becomes equal to the weight of the liquid displaced by its submerged part. 


Why do we feel light on our feet when standing in a swimming pool with water up to our armpits ?


The density of aluminium is 2.7 g cm-3 and that of brass 8.4 g cm’3. The correct statement is


The density of water is 1.0 g Cm-3. The density of iron is 7.8 × 10″3 g Cm-3. The density of mercury is 13.6 g Cm-3.
Ans the following:
Will a piece of iron float or sink in water?


  1. Calculate the height of a water column which will exert on its base the same pressure as the 70 cm column of mercury. Density of mercury is 13.6 g cm-3.
  2. Will the height of the water column in part (a) change if the cross-section of the water column is made wider?

A block of wood is floating on water with its dimensions 50 cm x 50 cm x 50 cm inside water. Calculate the buoyant force acting on the block. Take g = 9.8 N kg-1. 


A beaker contains a liquid of density ‘ρ’ up to height ‘h’ such that ‘PA’ is atmospheric pressure and ‘g’ is the acceleration due to gravity. Answer the following questions:

  1. What is the pressure on the free surface of the liquid?
  2. What is the pressure on the base of the beaker?
  3. What is the lateral pressure at the base on the inner walls of the beaker?

Is thrust a scalar or vector quantity?


Assertion (A): The buoyant force on a submerged rigid object can be considered to be acting at the center of mass of the object.
Reason (R): In rigid body, force distributed uniformly through its volume can be considered to be acting at the centre of mass of the body.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×