Question

The wavelength of a wave is less than

450 nanometers. Which color would this wave most likely appear
?

Answer 1

Answer:-

`\longrightarrow \sf Indigo`

Solution:-

The color and their corresponding wavelength ranges are given in the table below.

`\begin{gathered}\begin{gathered}\boxed{\begin{array}c \bf colour & \bf wavelength\\ \\ \frac{\qquad \qquad}{} & \frac{\qquad \qquad}{} \\ \sf red & \sf 650 - 700 \\ \\ \sf orange & \sf 600 - 650 \\ \\ \sf yellow & \sf \: 580 - 600 \\ \\ \sf green & \sf 550 - 580 \\ \\ \sf cyan & \sf 500 -550 \\ \\ \sf \: blue& \sf450 - 500\\ \\ \sf indigo & \sf 425- 450\\ \\ \sf violet & \sf 380 - 425 \end{array}} \\ \end{gathered}\end{gathered}`

After observing the table, we can predict that wave is most likely appear Indigo.

Note- The wavelengths boundaries between the colours are not very sharp and they form a continuous spectrum.