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Consider two cylindrical rods of identic...

Consider two cylindrical rods of identicaly dimensions, one of rubber and the other steel. Both the rods are fixed rigidly at one end to the roof. A mass M is attached to each of the free ends at the centre of the rods. Then

A

Both the rods will elongate but there no perceptible change in the shape.

B

The steel rod will elongate and change shape but the rubber rod will only elongate.

C

The steel rod will elongate without any perceptible change in shape, but the rubber rod will elongate and the shape of the bottom edge will change to an ellipse.

D

The steel rod will elongate, without any perceptible change in shape, but the rubber rod will elongate with the shape of the bottom edge tapered to a tip at the centre.

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-MECHANICAL PROPERTIES OF SOLIDS-EXERCISE -IA
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  3. Consider two cylindrical rods of identicaly dimensions, one of rubber ...

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  4. A mild steel wire of length 2L and cross sectional area A is stretched...

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  5. The stress-strain graphs for two materials are as shown.

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  6. A wire is suspended from the ceiling and stretched under the action of...

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  7. A copper wire and a steel wire of the same diameter and length are con...

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  8. The Young's modulus of steel is more than that of rubber. For a given ...

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  9. A wire of length 'L' and cross sectional area 'A' is made up of a mate...

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  10. K is the force constant of a spring. The work done is increasing its e...

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  11. Work done per unit volume is stretching a wire

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  12. Which has more Young's modulus, a thin steel wire or thick steel wire

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  13. The strain stress curves of three wires of different material as shown...

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  14. The load verses elongation graph for four wires of the same material i...

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  15. The property due to which a material can be hammered into thin sheet i...

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  16. A beam of metal supported at the two ends is loaded at the centre. The...

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  17. The potential energy U between two molecules as a function of the dist...

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  18. A uniform rod is fixed at one end to a rigid support, its temperature ...

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  19. Which of the following statements are correct? a) A wire is stiff...

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  20. Identify the correct answer. When a very long rod suspended in ai...

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