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An iron wire of length 4 m and diameter ...

An iron wire of length 4 m and diameter 2 mm is loaded with a weight of 8 kg. if the Young's modulus Y for iron is `2xx10^(11)N//m^(2)` then the increase in the length of the wire is

A

0.2 mm

B

0.5 mm

C

2 mm

D

1 mm

Text Solution

Verified by Experts

The correct Answer is:
B
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MOTION-ELASTICITY-EXERCISE -3
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  3. An iron wire of length 4 m and diameter 2 mm is loaded with a weight o...

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  4. The dimensional formula for young's modulus is

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  5. A fixed volume of iron is drawn into a wire of length l. The extension...

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  6. A mass of 0.5 kg is suspended from wiere, then length of wire increase...

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  7. If the strain in a wire is not more than 1//1000 and Y =2xx10^(11)N//m...

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  8. A wire of length L and radius r is fixed at one end. When a stretching...

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  9. How much force is required to produce an increase of 0.2 % in the leng...

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  10. If the interatomic spacing in a steel wire is 2.8xx10^(-10)m. And Y("s...

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  11. The load versus elongation graph for four wires of the same material a...

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  12. The mean distance between the atoms of iron is 3xx10^(-10) m and inter...

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  13. The area of cross section of a steel wire (Y=2.0 xx 10^(11) N//m^(2)) ...

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  14. For a given material the Young's modulus is 2.4 times that of its ri...

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  15. The diameter of a brass rod is 4 mm and Young's modulus of brass is 9 ...

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  16. The poisson's ratio cannot have the value

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  18. Two wires of the same length and material but different radii r(1) and...

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  20. A wire 3m long and having cross - sectional area of 0.42m^(2) is found...

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