Mnemonic device IV graph Light and Shade.

There is another common question in Physics. The IV graph of wire while light is ON or OFF. or Light and Shade.

Although the graph is easy to remember, I have easier way to remember this. Where there is light we stand up and move here and there. But in on light or shade we need to bend and touch here and there. Imagine you were in cave where there is no light and you need to bend. But when you came out you sand up.