A particle is released one by one from the top of two inclined rough surfaces of height \( h \) ...

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A particle is released one by one from the top of two inclined rough surfaces of height \( h \) each. The angles of inclination of the two planes are \( 30^{\circ} \) and \( 60^{\circ} \), respectively. All other factors (e.g., coefficient of friction, mass of block, etc.) are same in both the cases. Let \( K_{1} \) and \( K_{2} \) be the kinetic energies of the particle at the bottom of the plane in the two cases. Then
(1) \( K_{1}=K_{2} \)
(2) \( K_{1}K_{2} \)
(3) \( K_{1}K_{2} \)
(4) Data insufficient
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