Answer
a) Orange, 615 nm
b) Green, 525 nm
c) Purple, 415 nm
Work Step by Step
a) Because the color of the solution is blue, we can deduce that orange light is absorbed since orange is the complementary color to blue.
The color orange ranges from 580 to 650 nm, so we can estimate the approximate wavelength as 615 nm.
b) Because the color of the solution is red, we can deduce that green light is absorbed since green is the complementary color to red.
The color green ranges from 490 to 560 nm, so we can estimate the approximate wavelength as 525 nm.
c) Because the color of the solution is yellow, we can deduce that purple light is absorbed since purple is the complementary color to yellow.
The color purple ranges from 400 to 430 nm, so we can estimate the approximate wavelength as 415 nm.
