by viewing this ppt you can know about some of the most famous optical illusions.so watch more and enjoy more!

1. OPTICAL
ILLUSIONS

2. Look at the next slide.
Focus on the 4 small dots in the centre of
the picture and look at the picture for 30-40
seconds.
Afterwards blink your eyes couple of times
to the nearest wall.
What do you see?

4. The SCINTILLATING GRID – black dots appear at random intersections
Focus on a single intersection, the dot does not appear.
The dots disappear if you are too close or too far from the image.

5. Move your head
back and
forward.
What happens
to the
circles?

6. If your eyes follow the
movement of the rotating
pink dot,
the dots will remain only
one color, pink.
However if you stare at
the black " +" in the
center, the moving dots
turns to green.
Now, concentrate on the
black " + " in the center
of the picture. After a
short period, all the pink
dots will slowly
disappear, and you will
only see only a single
green dot rotating.

7. Look at the wildlife painting of a Bengal tiger.
Can you find the hidden tiger in the picture?

8. “the hidden tiger” is written in the tiger

9. What do you see?
In black you can read the word GOOD;
but the word EVIL also appears in white letters inside each black letter.

10. What do you see?
You should see a face ….
but also a word.
Tilt your head to the right –
the word begins with L.

11. Look at the chart and say the colour and NOT the
word!