question edit history translations

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

8

illusionsoptical illusionsopticstechnology

Illusions quiz Optical illusions quiz Optics quiz

You will play as

Answers by country

Singapore

9%

3%

77%

9%

31

the United States

9%

5%

72%

10%

855

Australia

14%

2%

72%

9%

92

Poland

8%

13%

69%

7%

20785

the United Kingdom

12%

9%

67%

9%

270

Canada

11%

8%

67%

7%

68

Switzerland

8%

20%

66%

2%

50

Belarus

6%

17%

65%

8%

58

the Netherlands

6%

13%

65%

3%

29

Greece

6%

9%

64%

16%

31

Germany

10%

14%

63%

9%

489

Austria

5%

16%

60%

17%

92

Republic of Ireland

6%

16%

60%

16%

30

Russia

9%

18%

57%

12%

315

the Philippines

14%

6%

57%

18%

49

India

12%

9%

56%

20%

383

Ukraine

9%

17%

56%

15%

282

Czech Republic

13%

13%

52%

21%

23

Kazakhstan

4%

27%

47%

18%

44

the United Arab Emirates

22%

18%

44%

3%

27

Which continent is that?

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

Rayleigh scattering

atmospheric refraction

This is a rare phenomenon called iridescent clouds. It occurs in the clouds with ...

detergent vapors

small droplets or ice crystals

How many dots at the intersections are black?