questionedithistorytranslations

Which area is brighter?

A
B
Both are the same
It depends on the order of seeing
This is the well known checker shadow illusion, first published in 1995 by Edward H. Adelson, Professor of Vision Science at MIT. The area A appears darker because of its light surrounding. At the same time, area B, surrounded with dark areas, appear lighter.
globalquiz.org
0
Correct this question
8
Very interesting!
reach: rather globalillusionsoptical illusionsopticstechnology
Illusions quizOptical illusions quizOptics quiz
  You will play as

Answers by country

A
B
Both are the same
It depends on the order of seeing
answers
flagBelarus
5%
11%
83%
0%
18
flagthe United States
8%
5%
74%
9%
671
flagCanada
13%
4%
74%
4%
43
flagAustralia
15%
1%
73%
7%
63
flagGermany
7%
12%
72%
6%
111
flagthe Philippines
13%
3%
72%
6%
29
flagthe Netherlands
0%
0%
70%
10%
10
flagPoland
8%
13%
69%
7%
17820
flagAustria
0%
21%
68%
10%
19
flagthe United Kingdom
12%
10%
67%
7%
163
flagMalaysia
25%
0%
66%
8%
12
flagRussia
6%
13%
65%
12%
73
flagGreece
10%
15%
65%
10%
20
flagUkraine
7%
17%
63%
11%
104
flagIndonesia
18%
0%
63%
18%
11
flagIndia
13%
8%
56%
18%
241
flagNorway
20%
20%
50%
0%
10
flagUnknown
21%
5%
42%
31%
19
flagPakistan
9%
18%
36%
36%
11
flagthe United Arab Emirates
27%
27%
36%
9%
11

Which continent is that?

Australia
Asia
Africa
North America

In what process sky colors (including blue sky and red sun) are created?

iridescence
Rayleigh scattering
mirage
atmospheric refraction

Which of the lines on the right, is the continuation of the black line on the left?

red one
blue one
none of them
both of them

How many dots at the intersections are black?

10%
25%
50%
None