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The following four wires are made of the...

The following four wires are made of the same material. If same tension is applied to each, the wire having largest extension is

A

l = 50cm and diameter 0.5mm

B

l = 100cm and diameter 1.0mm

C

l = 200cm and diameter 2.0mm

D

l = 300cm and diameter 3.0mm

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-MECHANICAL PROPERTIES OF SOLIDS-EXERCISE - 2 (YOUNG.S MODULUS)
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  2. The area of cross-section of a wire is 10^(-5) m^2 when its length i...

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  3. The following four wires are made of the same material. If same tensio...

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  4. A copper wire and an aluminium wire have lengths in the ratio 3:2, dia...

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  5. There are two wires of same material. Their radii and lengths are both...

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  6. If stress is numerically equal to young's modulus the elongation will ...

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  7. An aluminium rod has a breaking strain 0.2%. The minimum cross-section...

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  8. A string of cross section 2cm^2 is doubled in length by the applicati...

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  10. The length of a rubber cord is l1 metres when the tension in it is 4N ...

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  11. When a metal sphere is suspended at the end of a metal wire its extens...

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  12. A wire whose cross-sectional area is 4 mm^2 is stretched by 0.1 mm by...

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  13. When a tension 'F' is applied, the elongation produced in uniform wire...

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  14. Two wires A and B have Young's modulii in the ratio 1:2 and ratio of l...

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  15. A wire stretched by 0.01 m when it is stretched by a certain force. An...

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  16. A steel wire is 1m long and 1mm^2 in area of cross-section. If it tak...

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  17. Two bars A and B of circular cross section and of same volume made of ...

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  18. An iron wire of length 4m and diameter 2mm is loaded with a weight of ...

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  19. Two wires of same material have masses in the ratio 3:4 the ratio of t...

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  20. Two exactly similar wires of steel (Y=20 xx 10^11 dy//cm^2) and copper...

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