A steel ring of radius and cross-section area is fitted on to a wooden disc of radius . If Young’s modulus be , then the force with which the steel ring is expanded is |
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a) |
b) |
c) |
d) |

A steel ring of radius and cross-section area is fitted on to a wooden disc of radius . If Young’s modulus be , then the force with which the steel ring is expanded is |
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a) |
b) |
c) |
d) |

1 Answer

127 votes

Initial length (circumference) of the ring Final length (circumference) of the ring Change in length Now Young’s modulus |

127 votes

127