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A wire of length L and radius r is clamp...

A wire of length L and radius r is clamped at one end. On stretching the other end of the wire with a force F, the increase in its length is 1. If another wire of same material but of length 2L and radius 2r is stretched with a force 2F, the increase in its leagth will be

A

l

B

2l

C

4l

D

`l/2`

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AAKASH INSTITUTE ENGLISH-MECHANICAL PROPERTIES OF SOLIDS-Assignment(Section-C)
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  5. Which of the following relations is true?

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  7. Two steel wires of the same radius have their lengths in the ratio of ...

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  8. A steal wire of cross-section area 3xx10^(-6) m^(2) can withstand a m...

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  9. The hollow shaft is..than a solid shaft of same mass, material and len...

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  10. The bulk modulus for an incompresssible liquid is

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  11. A copper rod length L and radius r is suspended from the ceiling by on...

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  12. Which of the folliwing substances has the highest elastictiy

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  14. Two wire A and B of length l, radius r and length 2l, radius 2r having...

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  15. A cube of side 40 mm has its upper face displaced by 0.1 mm by a tange...

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  16. A rod of length l and radius r is joined to a rod of length l//2 and r...

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  17. The Young's modulus of the material of a wire is 2xx10^(10) N m^(-2) I...

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  18. A weight is suspended from a long metal wire. If the wire suddenly bre...

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  19. A wire of natural length l, young's modulus Y and area of cross-sectio...

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  20. When a force is applied on a wire of uniform cross-sectional area 3xx1...

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