An iron rod of length and cross section area of , stretched by , when a mass of is hung from its lower end. Young’s modulus of the iron rod is |
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a) |
b) |
c) |
d) |

An iron rod of length and cross section area of , stretched by , when a mass of is hung from its lower end. Young’s modulus of the iron rod is |
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a) |
b) |
c) |
d) |

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