If you coil a 50ft rope so it’s less than 10ft in length, can you cast Light on it?

@JeremyECrawford if you coil a 50ft rope so it's less than 10ft in length, can you cast Light on it? And what happens when it uncoils?

— James Cross (@BloodWolfX) December 3, 2016

Coiling a 50 ft. rope doesn't stop the rope from being 50 ft. long. The rope simply fits in a smaller space now. #DnD https://t.co/v1F33zeZXn

— Jeremy Crawford (@JeremyECrawford) December 4, 2016

@caffeinekatie @BloodWolfXtechnically it doesn’t fit in a smaller space when coiled, it just fits in a differently shaped space. Indeed.

— Jeremy Crawford (@JeremyECrawford) December 4, 2016