Question

why a circle of light is seen when a burning stick is revolved?

Answer 1

its nothing but u r eye motion speed which we can see1 th 15 time at one second so we can see a circle of light when we rotate with sone velocity. if u like this answer click me on brain list buddy

Answer 2

Answer:

1. The impression of the image on the retina lasts for about 1/16 th of a second after the removal of the object.

2. If a burning stick of incense is revolved at a rate of more than sixteen revolutions per second, a circle of red light is seen.

3. It is due to persistence of vision.

Explanation:

Persistence of vision :

The image of an object remains imprinted on our retina for 1/16 th of a second after the object is removed from the sight.

The sensation on the retina persists for a while.

This is called persistence of vision.