Consider two uniform discs of the same thickness and different radii R1=R and R2=αR, made of the same material. If the ratio of their moments of inertia I1 and I2, respectively, about their axes is I1:I2=1:16, then the value of α is :

Consider two uniform discs of the same thickness and different radii R

1.	Consider two uniform discs of the same thickness and different radii R1=R and R2=αR, made of the same material. If the ratio of their moments of inertia I1 and I2, respectively, about their axes is I1:I2=1:16, then the value of α is :
Answer» Consider two uniform discs of the same thickness and different radii $R_{1} = R and R_{2} = α R$ , made of the same material. If the ratio of their moments of inertia $I_{1}$ and $I_{2}$ , respectively, about their axes is $I_{1} : I_{2} = 1 : 16$ , then the value of $α$ is :

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Consider two uniform discs of the same thickness and different radii R1=R and R2=αR, made of the same material. If the ratio of their moments of inertia I1 and I2, respectively, about their axes is I1:I2=1:16, then the value of α is :

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