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Two wires of equal length and cross sect...

Two wires of equal length and cross sectional area suspended as shown in

Their Young's modulii are `Y_1 = 2xx10^(11)` Pa and `Y_2 = 0.90 xx 10^(11)` Pa respectively. What will be the equivalent Young's modulus of combination?

A

`2.90xx10^(11)Pa`

B

`1.45xx10^(11)Pa`

C

`1.34xx10^(11)Pa`

D

`4.25xx10^(11)Pa`

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-MECHANICAL PROPERTIES OF SOLIDS-Assignment (SECTION - A)
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  6. A steel rod has a radius 10 mm and a length of 1.0 m. A force stretch...

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  7. Two wires of equal length and cross sectional area suspended as shown ...

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  8. When a wire is stretched to double its length, then

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  9. Select the correct alternative (s)

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  10. A metallic rod of length l and cross-sectional area A is made of a mat...

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  11. The Poisson's ratio of a material is 0.5. If a force is applied to a w...

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  15. In the given Fig. 7(CF).2, if the dimensions of the two wires are the ...

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  16. If the Bulk modulus of lead is 8.0xx10^(9)N//m^(2) and the initial den...

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  17. Two wires A and B of same material have radii in the ratio 2:1 and le...

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  18. For a given material, the Young's modulus is 2.4 times that of the m...

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  19. When the temperature of a gas is 20^(@)C and pressure is changed from ...

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