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We report an observation of a small scale flux-tube that undergoes kinkingand triggers the macrospicule and a jet on November 11, 2010 in the north polarcorona. The small-scale flux-tube emerged well before the triggering ofmacrospicule and as the time progresses the two opposite halves of this omegashaped flux-tube bent transversely and approached towards each other. After$\sim$ 2 minutes, the two approaching halves of the kinked flux-tube toucheach-other and internal reconnection as well as energy release takes place atthe adjoining location and a macrospicule was launched which goes upto a heightof 12 Mm. Plasma starts moving horizontally as well as vertically upward alongwith the onset of macrospicule and thereafter converts into a large-scale jetwhich goes up to $\sim$ 40 Mm in the solar atmosphere with a projected speed of$\sim$ 95 km s$^{-1}$. We perform 2-D numerical simulation by considering theVAL-C initial atmospheric conditions to understand the physical scenario of theobserved macrospicule and associated jet. The simulation results show thatreconnection generated velocity pulse in the lower solar atmosphere steepensinto slow shock and the cool plasma is driven behind it in form ofmacrospicule. The horizontal surface waves also appeared with the shock frontsat different heights, which most likely drove and spread the large-scale jetassociated with the macrospicule.

Origin of Macrospicule and Jet in Polar Corona by A Small-scale Kinked Flux-Tube