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A 5 m long aluminium wire (Y=7xx10^(10) ...

A 5 m long aluminium wire `(Y=7xx10^(10) Nm^(-2))` of diameter 3 mm supports a 40 kg mass . In order to have the same elongation in a copper wire `(Y=12xx10^(10) Nm^(-2))` of the same length under the same weight, the diameter should now be in mm.

A

1.75

B

1.5

C

2.3

D

5

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A metallic wire of diameter 0.3 mm and length 3m is stretched by hanging a weight of 2 kg . If the elongation produced is 2 mm

A wire 3m long and diameter 0.3 mm is stretched by a load of 2kg. If the elongation is 2mm, find the Young.s modulus of the material of the wire and the potential energy stored in the wire.

A substance breaks down under a stress of 10^(5) Pa . If the density of the wire is 2 xx 10^(3) kg//m^(3) , find the minimum length of the wire which will break under its own weight (g= 10 ms^(-12)) .

A steel wire of length 600cm and diameter 1.2 mm is stretched through 4 mm by a load. Calculate the work done. Young's modulus of steel = 2xx 10^(11) Nm^(-2) .

A wire of length 50 cm and cross sectional area of 1 sq. mm is extended by 1mm . The required work will be (Y=2xx10^(10) Nm^(-2))

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AAKASH INSTITUTE ENGLISH-MECHANICAL PROPERTIES OF SOLIDS-Assignment(Section-C)
  1. The increase in pressure required to decrease the 200 L volume of a li...

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  2. Which of the following relations is true?

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  3. A 5 m long aluminium wire (Y=7xx10^(10) Nm^(-2)) of diameter 3 mm supp...

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

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

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

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  7. The bulk modulus for an incompresssible liquid is

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

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  9. Which of the folliwing substances has the highest elastictiy

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  10. When a wire of length 10 m is subjected to a force of 100 N along its ...

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

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

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

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

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

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

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

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  18. If in a wire of Young's modulus Y, longitudinal strain X is produced t...

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  19. A uniform metal rod of 2mm^(2) area of cross section is heated from 0^...

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  20. A material has Poissons ratio 0.5. If a uniform rod of it suffers a lo...

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