Interactive Science exhibits, ideated and fabricated to inclucate and invigorate the young minds about Science !!
Here, a pinhole camera is installed with a view finder on one side and a minute hole on the other side. A movable screen is fixed inside with a mechanism for back and front movement. View through the view finder.
What did you observe?
You find an inverted image of the surroundings in the glass plate.
The science behind it :
The light rays coming from distant objects are inverted at the pinhole and falls on the screen.