Question

Select the statement(s) that accurately describe visible light.

The wavelengths of other parts of the electromagnetic spectrum are either too long or short to be perceived by our eyes.

The visible light part of the electromagnetic spectrum is the only portion that we can see with the human eye.

The colors of the visible light spectrum are red, orange, yellow, blue, purple and white.

White light is a combination of all the colors of the visible light spectrum.

Cone-shaped cells in our eyes only perceive certain portions of the electromagnetic spectrum.

Answer 1

Correct: statements 1, 2, 4 and 5.

Brief notes:
- 1 & 2: Human eyes detect only the visible band (~380–740 nm); other EM wavelengths are too long or too short to be seen.
- 4: White light is produced by mixing the spectral colors (or by combining broad-band wavelengths).
- 5: Cone cells are tuned to different parts of the visible spectrum (three types roughly sensitive to short, medium, and long wavelengths).

Statement 3 is incorrect: the full spectral rainbow includes green (and often listed as indigo/violet); "white" is not a single spectral color but a mixture of wavelengths.