By considering the Robertson-Walker line element exact cosmological solution have been obtained with the assumption that the radius of the universe varies directly as the nth power of cosmic time t and the generated particles are considered as the matter sources in Jordan-Brans-Dicke Theory. Both density and pressure vary inversely as the age of the universe where Brans-Dicke scalar f varies directly as the age of the universe. The exact solutions corresponding to the 3 values of k (0, 1, -1) are investigated. The gravitation variable G varies inversely as the age of the universe.
Brans-Dicke theory, particle creation, Cosmology and Dirac’s hypothesis
