The rainbow is violet on the inside of its arc. What color is it on the outside?

blue

green

yellow

red

Visible light spans from red to violet. It is easy to remember, since wavelengths just outside the visible range are called infrared and ultraviolet.

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Light quiz Optics quiz Colors quiz

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Answers by country

Ghana

83%

India

10%

72%

541

Australia

11%

68%

the United States

15%

66%

683

Malaysia

12%

66%

Unknown

19%

64%

Republic of Ireland

11%

16%

61%

Canada

21%

60%

Austria

17%

18%

58%

the United Kingdom

18%

15%

57%

220

Switzerland

12%

22%

56%

Pakistan

13%

20%

55%

the Netherlands

15%

21%

54%

Lebanon

33%

13%

53%

Germany

21%

10%

13%

51%

524

the Philippines

32%

51%

Poland

17%

10%

22%

48%

18420

Greece

24%

44%

South Africa

40%

11%

40%

Nigeria

26%

21%

10%

36%

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Why is White Sands Desert in New Mexico so purely white?

it is gypsum

it is very fine grained sand

it iswhite quartz

it is an optical illusion

Who is more likely to be colorblind?

men

women

sailors

everyone with the same probability

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