Properties of Solids & Liquids (NEST (National Entrance Screening Test) Physics): Questions 1 - 2 of 3
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Question number: 1
» Properties of Solids & Liquids » Young's Modulus
Appeared in Year: 2015
Question
The stress – strain plot for wires made of two materials ( and ) is presented schematically in the accompanying figure. The points and represent fracture points of the two materials and respectively. It can be concluded from these graphs that –
Graph of Stress vs Strain
In figure graph of stress vs strain of two different materials is shown
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Material and are equally brittle |
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| b. | The linear region of material extends to a larger value of stress that of material . |
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| c. | Material is more ductile than material |
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| d. | Material has Young’s modulus larger than that of material |
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Question number: 2
» Properties of Solids & Liquids » Application of Surface Tension
Appeared in Year: 2014
Question
The surface of a liquid is just able to support the weight of a six – legged insect. The leg ends can be assumed to be spheres each of radius and the weight of the insect is distributed equally over the six legs. The coefficient of surface tension in this case is and the angle of the footfall with respect to the vertical is (see figure). The mass of the insect is closed to –
Leg of Insect Floating on Surface of Liquid
In figure a sphere shaped leg of insect floating on surface of liquid is shown
Choices
| Choice (4) | Response | |
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| a. |
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| b. |
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| c. |
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| d. |
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