Test Academy | A rigid bar of mass M is supported symmetrically by three wires each of length l . Those at each end are of copper and the middle one is of iron. The ratio of their diameters, if each is to have the same tension, is equal to Y꜀ₒₚₚₑᵣ/Yᵢᵣₒₙ, √(Y꜀ₒₚₚₑᵣ/Yᵢᵣₒₙ), (Y꜀ₒₚₚₑᵣ/Yᵢᵣₒₙ)², Yᵢᵣₒₙ/Y꜀ₒₚₚₑᵣ

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A rigid bar of mass M is supported symmetrically by three wires each of length l . Those at each end are of copper and the middle one is of iron. The ratio of their diameters, if each is to have the same tension, is equal to

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Y꜀ₒₚₚₑᵣ/Yᵢᵣₒₙ
√(Y꜀ₒₚₚₑᵣ/Yᵢᵣₒₙ)
(Y꜀ₒₚₚₑᵣ/Yᵢᵣₒₙ)²
Yᵢᵣₒₙ/Y꜀ₒₚₚₑᵣ

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