Scientists from _____ university has created the World’s Smallest Colour Pixels by trapping the particles of light ?

1) Oxford University
2) University of Cambridge
3) Harvard University
4) University College London

Explanation:
Scientists from the University of Cambridge, UK create the World’s Smallest Colour Pixels by trapping the particles of light under the tiny rocks of gold. These pixels can be used for new types of large-scale flexible displays and are big enough to cover entire buildings.Cambridge University Professor Jeremy J Baumberg led the research.These are the smallest pixels ever created and are smaller than the typical smart phone pixels.They are compatible with roll-to-roll fabrication on flexible plastic films which reduces their production cost.