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 |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

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%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

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%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

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 |
 68%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

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 |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Shearing stress causes a change in-

(1)   Length                              

(2)   Breadth

(3)   Shape                               

(4)   Volume

Subtopic:  Stress - Strain |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

To break a wire, a force of 106N/m2 is required. If the density of the material is 3×103 kg/m3, then the length of the wire which will break by its own weight will be -

(a) 34 m                             (b) 30 m

(c) 300 m                            (d) 3 m

Subtopic:  Stress - Strain |
 53%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

The strain-stress curves of three wires of different materials are shown in the figure. \(P\), \(Q\) and \(R\) are the elastic limits of the wires. The figure shows that:
           

1. Elasticity of wire \(P\) is maximum.
2. Elasticity of wire \(Q\) is maximum.
3. Tensile strength of \(R\) is maximum.
4. None of the above is true.
Subtopic:  Stress - Strain Curve |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The diagram shows a force-extension graph for a rubber band. Consider the following statements

I. It will be easier to compress this rubber than expand it

II. Rubber does not return to its original length after it is stretched

III. The rubber band will get heated if it is stretched and released

 Which of these can be deduced from the graph?

(1)   III only                              

(2)   II and III

(3)   I and III                            

(4)   I only

Subtopic:  Stress - Strain Curve |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

The adjacent graph shows the extension l of a wire of length 1m suspended from the top of a roof at one end with a load W connected to the other end. If the cross sectional area of the wire is 10-6m2 calculate the young’s modulus of the material of the wire

(a) 2×1011N/m2

(b) 2×10-11N/m2

(c) 3×10-12N/m2

(d) 2×10-13N/m2

Subtopic:  Stress - Strain Curve |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch