যদি \(x\propto y\) হয় তখন (a) \(x^2\propto y^3\) (b) \(x^3\propto y^2\) (c) \(x\propto y^3\) (d) \(x^2\propto y^2\)
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Answer: D
\(x∝y\)
বা, \(x=ky\)
বা, \(x^2=k^2 y^2\)
বা, \(x^2∝y^2\)

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