1.

Three spheres of different materials are in motion their radii, densities and speeds are as given {:("SI.NO","Radius","Density","Speed"),(1,r,d,v),(2,r//2,d,V//2),(3,2r,d//2,v):} If K_(1),K_(2),K_(3) are the kinetic energies of those three spheres respectively , those vlaues can be arranged in descending order as given below

Answer»

`K_(3),K_(2),K_(1)`
`K_(3),K_(1),K_(2)`
`k_(1),K_(2),K_(3)`
`K_(2),K_(1),K_(3)`

ANSWER :B


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