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प्रश्न
Copper of fixed volume V is drawn into a wire of length l. When this wire is subjected to a constant force F, the extension produced in the wire is ∆l. If Y represents Young’s modulus, then which of the following graphs is a straight line?
विकल्प
∆l versus V
∆l versus Y
∆l versus F
∆l versus `1/"l"`
उत्तर
∆l versus F
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