A particle is released from the top of two inclined rough surfaces of height '\[h\]' each. The angle 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 two cases. Then

A particle is released from the top of two inclined rough surfaces of

1.	A particle is released from the top of two inclined rough surfaces of height '\[h\]' each. The angle 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 two cases. Then
A.	\[{{K}_{1}}={{K}_{2}}\]
B.	\[{{K}_{1}}>{{K}_{2}}\]
C.	\[{{K}_{1}}<{{K}_{2}}\]
D.	data insufficient
Answer» D. data insufficient