  We show a noise-induced transition in Josephson junction with fundamental as
well as second harmonic. A periodically modulated multiplicative colored noise
can stabilize an unstable configuration in such a system. The stabilization of
the unstable configuration has been captured in the effective potential of the
system obtained by integrating out the high-frequency components of the noise.
This is a classical approach to understand the stability of an unstable
configuration due to the presence of such stochasticity in the system and our
numerical analysis confirms the prediction from the analytical calculation.
