Question

two pendulum, one have nylon wire and other have copper wire, will there any change in any time period of their oscillation

Answer 1

Hey
here's your answer!!

No , two pendulum, one have nylon wire and other have copper wire, will not have any change in the time period of their oscillation.
It is because the time period of a simple pendulum depends only on the effective length of the pendulum and the acceleration due to gravity at that place.
It is independent of the material of which the pendulum wire of which it is made up of.

Hope it helps!!