When a certain weight is suspended from a long uniform wire, its length increases by 1 c m . If the same weight is suspended from another wire of the same material and length but having a diameter hal

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When a certain weight is suspended from a long uniform wire, its length increases by 1 c m . If the same weight is suspended from another wire of the same material and length but having a diameter half of the first one then the increase in length will be

TestHub · Accepted Answer

Increase in length is given by, l = F L A Y ⇒ l ∝ 1 r 2 ( F L and Y are constant) l 2 l 1 = r 1 r 2 2 = 2 2 = 4 ⇒ l 2 = 4 l 1 = 4 c m

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