Pinhole camera: It is a simple camera which can be made from wood or cardboard box. Take two boxes such that one can slide into the other tube easily.
Cut the small flaps of one side of each box. Make a hole in the centre of other side of big box. Similarly cut a rectangular flap in the centre of other side of small box. Put a piece of tracing paper on this cut. Slide the smaller box inside the bigger box. A pinhole camera is ready.
Working: Try to view from the open side of small box. Cover your head and box with a black cloth. View some trees or far off objects. Fix camera on object which is completely under sunlight. Slide small box inside bigger box so that a picture can be obtained on butter paper.
Formation of sun’s shadow with pinhole camera:
To make shadow of sun, we need a big cardboard sheet with a pinhole in centre. Hold this sheet in front of sun to get a clear shadow. We will see round image of sun in the centre of the cardboard sheet.
