1.

An incense stick when rotated, forms complete circles. Explain this statement using the concept of "Persistence of Vision."

Answer»

Solution :1. This happen due to persistence of VISION.
2. The impressionof IMAGE remains on retina for `1^(th)/16` of a second even after the object is REMOVED.
3. During this time, the second image id formed, which merges with the first image. This gives the imperssion of complete circle when ROTATED.


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