Two solid spheres whose radii are in th...

Two solid spheres whose radii are in the ratio 1:2 are moving with velocity in the ratio 3:4.If their densities are in the ratio 3:2, then the ratio of their kinetic energies is
a).`9/128`.b)`81/512` ,c)`9/64`,d)`27/256`

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Two solid spheres whose radii are in the ratio 1:2 are moving with velocity in the ratio 3:4.If their densities are in the ratio 3:2, then the ratio of their kinetic energies is a).`9/128`.b)`81/512` ,c)`9/64`,d)`27/256`

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Two solid spheres whose radii are in the ratio 1:2 are moving with velocity in the ratio 3:4.If their densities are in the ratio 3:2, then the ratio of their kinetic energies is
a).`9/128`.b)`81/512` ,c)`9/64`,d)`27/256`