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The ratio of the length and diameters of...

The ratio of the length and diameters of two metallic wires A and B of the same material are 1:2 and 2 :1 respectively. IF both the wires are stretched by the same tension, then the ratio of the elongations of A and B will be

A

`1:2`

B

`4:1`

C

`1:8`

D

`1:4`

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The correct Answer is:
C
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CHHAYA PUBLICATION-ELASTICITY -EXERCISE (Multiple Choice Questions)
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  2. Keeping one end of a wire of length L and radius r fixed, a force F is...

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  3. The ratio of the length and diameters of two metallic wires A and B of...

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  4. A uniform rod weights W, has length L and cross sectional area a. The ...

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  5. Two rods of equal length and cross- sectional area have their Young's ...

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  6. A rubber string of length 8 m is hanging vertically with one end fixed...

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  7. Modulus of rigidity of steel is n and its Youngs's modulus is Y. A ste...

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  8. In stretching a wire, the amount of work done per unit volume of the w...

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  9. A stretched rubber has

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  10. A wire of initial length L and area of cross section A has Young's mod...

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  11. A wire of initial length L and area of cross section A, having young's...

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  12. One end of a wire is rigidly fixed and a force of 200 N is applied at ...

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  13. Two wires A and B are made of the same metal. Diameter of A is double ...

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  14. A spring of force constant k is cut into two equal parts The force con...

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  15. Force constants of two springs are k1 and k2 One end of a spring is co...

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  16. A wire of length L are area of cross section A. Having young's modulus...

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  17. An elastic spring of length L and of force constant k is stretched to ...

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  18. An ideal spring with spring constant k is hung from the ceiling and a ...

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  19. Two springs P and Q of force constant kp and kq (kQ=kP/2) are stretche...

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  20. Before snapping a wire can bear a load of 100kg. The wire is cut into ...

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