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A steel wire is stretched by 1 kg wt. If...

A steel wire is stretched by `1 kg wt`. If the radius of the wire is doubled, its Young's modulus will

A

remain unchanged

B

become half

C

become double

D

become four times

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The correct Answer is:
A
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MOTION-ELASTICITY-EXERCISE -1
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  2. The modulus of elasticity of a material does not depend upon

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  3. A steel wire is stretched by 1 kg wt. If the radius of the wire is dou...

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  4. On withdrawing the applied force on some objects, the deformity caused...

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  5. On stretching some substances, permanent elongatiion is caused, becaus...

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  6. Out of the following materials, whose elasticity is independent of tem...

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  8. The following four wires are made of the same material. Which of these...

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  9. The dimensional formula for compressibility is

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  11. A rod of length l and area of cross-section A is heated from 0^(@)C to...

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  12. When a wire is stretched, an amount of work is done. What is the amoun...

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  13. How many times is the adiabatic modulus of elasticity of gas as compar...

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  14. An iron bar of length l cross section 'A' and young's modulus Y is pu...

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  15. On withdraw in the external applied force on bodies within the elastic...

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  16. Elasticity is the property which is caused by

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  17. The effect of temperature on the value of modulus of elasticity for va...

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  18. The number of independent elasctic constants of a solid is

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  19. Ratio of isothermal elasticity of gas to the adiabatic elasticity is

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  20. On abruptly withdrawing the stretching force acting on a wire, its tem...

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