Physics General Science Test Hard Mode

Sr. #	Questions	Answers Choice
1	According to the Hooke's law the force required to change the length of a wire by '1' is proportional to	1<sup>-2</sup> 1<sup>-1</sup> 1 1<sup>2</sup>
2	A wire is stretched to double of its length.The strain is	2 1 Zero 0.5
3	How does the Young's modulus vary with the increase of temperature?	Decrease Increase Remains constant First increases and then decreases
4	The modulus of rigidity of a liquid is	Zero 1 Infinity A value not one of those mentioned above
5	Steel is preferred for making springs over copper.Whey?	Steel is cheaper Young's modulus of steel is more than that of copper Young's modulus of copper is more than that of steel Steel is less likely to be oxidized

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