हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान कक्षा ११

Fill in the Blanks for Solids with Elastic Modulus of Rigidity, the Shearing Force is Proportional to . . . , While for Fluids It is Proportional to . .. (Shear Strain / Rate of Shear Strain)

Advertisements
Advertisements

प्रश्न

Fill in the blanks using the word(s) from the list appended with each statement

For solids with elastic modulus of rigidity, the shearing force is proportional to . . . , while for fluids it is proportional to . .. (shear strain / rate of shear strain)

Advertisements

उत्तर

Shear strain; Rate of shear strain

With reference to the elastic modulus of rigidity for solids, the shearing force is proportional to the shear strain. With reference to the elastic modulus of rigidity for fluids, the shearing force is proportional to the rate of shear strain.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 9: Mechanical Properties of Fluids - Exercises [पृष्ठ २६८]

APPEARS IN

एनसीईआरटी Physics Part 1 and 2 [English] Class 11
अध्याय 9 Mechanical Properties of Fluids
Exercises | Q 3.3 | पृष्ठ २६८

संबंधित प्रश्न

The force of viscosity is


A small sphere of radius 2 cm falls from rest in a viscous liquid. Heat is produced due to viscous force. The rate of production of heat when the sphere attains its terminal velocity is proportional to


What is Reynold’s number? Give its significance.


Derive the expression for the terminal velocity of a sphere moving in a high viscous fluid using stokes force.


A small metal sphere of mass M and density d1, when dropped in a jar filled with liquid moves with terminal velocity after sometime. The viscous force acting on the sphere is (d2 = density of liquid and g = gravitational acceleration)


From amongst the following curves, which one shows the variation of the velocity v with time t for a small-sized spherical body falling vertically in a long column of a viscous liquid.


Choose the CORRECT statement.


The tangential force or viscous drag on any layer of the liquid is directly proportional to the velocity gradient `"dv"/"dx"`. Then the direction of dx velocity gradient is ____________.


The velocity of water in river is 8 km/hr of the upper surface. The river is 12 m deep. If the coefficient of viscosity of water is 10-2 poise then the shearing stress between horizontal layers of water is ______.


Analogy

Viscous force: ______:: Buoyant force: ______.


A solid ball of density ρ1 and radius r falls vertically through a liquid of density ρ2. Assume that the viscous force acting on the ball is F = krv, where k is a constant and v its velocity. What is the terminal velocity of the ball?


The velocity of a small ball of mass 0.3 g and density 8 g/cc when dropped in a container filled with glycerine becomes constant after some time. If the density of glycerine is 1.3 g/cc, then the value of viscous force acting on the ball will be x × 10-4 N, and the value of x is ______.

[use g = 10 m/s2]


The coefficient of apparent expansion of mercury in a glass vessel is 153 × 10-6/°C and in a steel vessel is 144 × 10-6/°C. If α for steel is 12 × 10-6/°C, then that of glass is ______.


A liquid of density ρ and coefficient of viscosity η flows with velocity v through a tube of diameter D. A quantity `"R" = (rho"vD")/η`, determines whether the flow will be streamlined or turbulent. R has the dimension of ______.


Define the coefficient of viscosity.


State the formula and S.I. units of coefficient of viscosity.


The dimensions of coefficient of viscosity are ______.


A water pipe with diameter of 5.0 cm is connected to another pipe of diameter 2.5 cm. How would the speeds of the water flow compare?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×