What you're looking at is light breaking one of our everyday intuitions.
When a charged particle moves through a medium faster than light can travel in that medium,
v > c/n
it generates Cherenkov radiation, a brilliant blue glow often seen in nuclear reactors. The light-speed version of a sonic boom.
OHMโS LAW IN GRAPHS
Understanding relationships in physics is key. When voltage and current are directly proportional, the graph tells the full story.
Straight lines reveal consistency. Curves reveal change. Know the differenceโthis is where most students lose marks.
Train your eye to interpret graphs quickly and accurately. Thatโs how you gain an edge in exams.