Is this a polarised capacitor
Let's see: We have name Jamicon printed on the capacitor as well as NP. A simple search of Jamicon capacitors brought me to the website of Jamicon Electronics Corporation. Going to Capacitor->Product search menu brings us to the search interface. 

I don't see any NP series capacitors, so I went to advanced search and used voltage and capacitance as inputs. It didn't produce any relevant results (the TK series, which it produces isn't what we have, from  the datasheet description), so I went back to the basic search and checked capacitor descriptions. 

I noticed term bi-polar in some of them and downloaded datasheets for the first one I saw. As it so happened, the datasheet was for NK series capacitor. The datasheet showed a picture of capacitor with NP mark and had Non Polarity in big letters on the first page and Standard non polarity series for using in polarity reversal circuits. in description. 

So I guess that the capacitor isn't polarized. Also note that it doesn't seem to have the traditional polarized stripe on the body.

I hope that the thought process explained here will help you in future searches for part descriptions.