1.

The potential energy of a particle with displacement X is U(X). The motion is simple harmonic, when (K is a positive constant)                                                                          [CPMT 1982]

A.            \[U=-\frac{K{{X}^{2}}}{2}\]    
B.            \[U=K{{X}^{2}}\]
C.            \[U=K\]                                  
D.            \[U=KX\]
Answer» B.            \[U=K{{X}^{2}}\]


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