This, too, depends on whether the divorce application is challenged. If no challenge is forthcoming, it is unlikely that you will need to attend Court in person.
However, if the divorce application is indeed challenged, you will be required to turn up at Court in person. While there, you might need to give oral evidence.
Statistically, you are unlikely to need to appear before a judge at any point in the divorce process, as most divorce applications are not met with any formal objections from the other party. As a result, courts are usually able to deal with divorces simply by using the documents sent to them.