A material has Poisson's ratio 0.5. If a uniform rod of it suffers a longitudinal strain of 3×10-3, what will be percentage increase in volume?

1. 2%

2. 3%

3. 5%

4. 0%

Subtopic:  Poisson's Ratio |
 64%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Hooke's law is applicable for:

1. elastic materials only 2. plastic materials only
3. elastomers only 4. all of these

Subtopic:  Hooke's Law |
 68%
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

When a load of 10 kg is suspended on a metallic wire, its length increase by 2mm. The force constant of the wire is

1. 3×104 N/m

2. 2.5×103 N/m

3. 5×104 N/m

4. 7.5×103 N/m

Subtopic:  Stress - Strain |
 72%
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NEET 2023 - Target Batch - Aryan Raj Singh
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The figure shows the graph between stress and strain for a uniform wire at two different temperatures. Then:

1. T1>T2

2. T2>T1

3. T1=T2

4. None of these

Subtopic:  Stress - Strain Curve |
 64%
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NEET 2023 - Target Batch - Aryan Raj Singh
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If two different types of rubber are found to have stress-strain curves as shown, then:
                   

1. A is suitable for shock absorbers.
2. B is suitable for shock absorbers.
3. B is suitable for car tires.
4. None of these

Subtopic:  Stress - Strain Curve |
 74%
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The stress-strain graphs for two materials \(A\) and \(B\) are shown in the figure. The graphs are drawn to the same scale. Select the correct statement:

1. material \(A\) has a greater Young's Modulus.
2. material \(A\) is ductile. 
3. material \(B\) is brittle.
4. all of these.

Subtopic:  Stress - Strain Curve |
 86%
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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The load versus elongation graph for four wires of same length and the same material is shown in figure. The thinnest wire is represented by line:

1. OC

2. OD

3. OA

4. OB

Subtopic:  Stress - Strain Curve |
 71%
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

In the given figure, if the dimensions of the two wires are the same but materials are different, then Young's modulus is

1. More for A than B

2. More for B than A

3. Equal for A and B

4. None of these

Subtopic:  Stress - Strain Curve |
 81%
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The length of wire, when M1 is hung from it, is l1 and is l2 with both M1 and M2 hanging. The natural length of wire is

1. M1M2(l1-l2)+l1

2. M2l1-M1l2M1+M2

3. l1+l22

4. l1l2

Subtopic:  Stress - Strain |
 55%
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NEET 2023 - Target Batch - Aryan Raj Singh
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The substances having very short plastic region are

1. Ductile

2. Brittle

3. Malleable

4. All of these

Subtopic:  Stress - Strain Curve |
 77%
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NEET 2023 - Target Batch - Aryan Raj Singh
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