We have noted down time because we have to find an omega, omega is 4 pi n 2 by t we have noted down here in this column time.
हमने समय को लिख लिया है क्योंकि हमें omega ज्ञात करना है, omega 4 pi n 2 by t है, हमने इस समय कॉलम में यहां लिख लिया है।