Making a notch filter fo 500Hz frequency
I've never seen this circuit before, and I haven't analyzed it. In any case your opamp doesn't have DC feedback, so any input offset will make the output clip to the rails. See also this question.  

You don't need an opamp for a notch filter, they're often made as a twin T-filter:  

  

The center frequency is

\$ f_C = \dfrac{1}{2 \pi R C} \$  

The disadvantage of this is a low Q. The following active twin T-filter has adjustable Q: