| 1. Take a burning incense stick in your hand and rotate it fast along a circle. What do you see and why? |
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| → A complete circle of red light is seen. This happens due to the persistence of vision. 2 Marks |
| 2. Draw a cage on one side of a cardboard and a bird on the other side. Hang the cardboard with the help of a thread. Twist the thread and leave it. What do you see and why? |
| → The bird appears to be inside the cage. This happens due to the persistence of vision. 2 Marks |
Watch Video (5:32): |
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A YouTube video explaining the persistence of vision: |
This page was last modified on
02 March 2020 at 03:45