A substance that continually deforms under an applied shear stress is called a

solid

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fluid

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plastic

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None of these

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Solution

The correct option is B fluid
In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress.Fluids are substances that have zero shear modulus, or, in simpler terms, a fluid is a substance which cannot resist any shear force applied to it.

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Similar questions

Q. Select the correct statement:
(i) In solids, if we apply shear stress, deformation occurs, but does not increase with time.
(ii) In liquids on application of shear stress, deformation increases with time.

Q. Assertion :When a rod is subjected to transverse oscillations, the stress introduced in it is shear stress. Reason: Shear stress occurs in an elastic body when the applied force tries to change its shape.

Q. Consider a circular shaft of radius 'R' having the maximum shear stress '

f_{s}

' developed by an applied torque.

Assertion (A) : The shear stress 'q' at a point on the section having coordinate (0, y) is

\frac{f_{s} y}{R}

Reason(R) : In the shaft, the shear stress 'q' at a point of coordinate (x, y) is

\frac{f_{s}}{R} \sqrt{x^{2} + y^{2}}

Question 2

The ability of an substance to resist any deformation or the ability to undergo damage when pressure is applied is defined as the hardness or softness of that substance.

(a) A substance which is very hard is used in jewellery. Identify substance.

(b) Which substance is harder: steel pipe or wooden piece?

Q. A shear stress gets developed when the force is applied perpendicular to cross section.

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A substance that continually deforms under an applied shear stress is called a

The correct option is B fluidIn physics, a fluid is a substance that continually deforms (flows) under an applied shear stress.Fluids are substances that have zero shear modulus, or, in simpler terms, a fluid is a substance which cannot resist any shear force applied to it.

The correct option is B fluid
In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress.Fluids are substances that have zero shear modulus, or, in simpler terms, a fluid is a substance which cannot resist any shear force applied to it.