A ball falling in a lake of depth 200 m shows 0.1% decrease in its volume at the bottom. What is the bulk modulus of the material of the ball

(1) 19.6×108N/m2               

(2) 19.6×10-10N/m2

(3) 19.6×1010N/m2               

(4) 19.6×10-8N/m2

Subtopic:  Shear and bulk modulus |
 77%
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The Bulk modulus for an incompressible liquid is

(1) Zero                                           

(2) Unity

(3) Infinity                                       

(4) Between 0 to 1

Subtopic:  Shear and bulk modulus |
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The ratio of lengths of two rods \(A\) and \(B\) of the same material is \(1:2\) and the ratio of their radii is \(2:1\). The ratio of modulus of rigidity of \(A\) and \(B\) will be:

1. \(4:1\) 2. \(16:1\)
3. \(8:1\) 4. \(1:1\)
Subtopic:  Stress - Strain |
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When a spiral spring is stretched by suspending a load on it, the strain produced is called:

1. Shearing
2. Longitudinal
3. Volume       
4. shearing and longitudinal
Subtopic:  Shear and bulk modulus |
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The Young's modulus of the material of a wire is 6×1012N/m2 and  there is no transverse strain in it, then its modulus of rigidity will be

(1) 3×1012N/m2                       

(2) 2×1012N/m2

(3) 1012N/m2                             

(4) None of the above

Subtopic:  Elasticity |
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Modulus of rigidity of a liquid:

(1) Non zero constant

(2) Infinite

(3) Zero

(4) Can not be predicted

Subtopic:  Shear and bulk modulus |
 62%
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A cube of aluminium of sides \(0.1~\text{m}\) is subjected to a shearing force of \(100\) N. The top face of the cube is displaced through \(0.02\) cm with respect to the bottom face. The shearing strain would be:
1. \(0.02\)                                   
2. \(0.1\)
3. \(0.005\)                               
4. \(0.002\)

Subtopic:  Stress - Strain |
 71%
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The upper end of a wire of radius 4 mm and length 100 cm is clamped and its other end is twisted through an angle of 30°. Then angle of shear is

(1) 12°                                     

(2) 0.12°

(3) 1.2°                                     

(4) 0.012°

Subtopic:  Stress - Strain |
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A rod of length l and radius r is joined to a rod of length l/2 and radius r/2 of same material. The free end of small rod is fixed to a rigid base and the free end of larger rod is given a twist of θ, the twist angle at the joint will be 

(a) θ/4                          (b) θ/2

(c) 5θ/6                         (d) 8θ/9

Subtopic:  Stress - Strain |
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Shearing stress causes a change in-

(1)   Length                              

(2)   Breadth

(3)   Shape                               

(4)   Volume

Subtopic:  Stress - Strain |
 76%
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