Which everyday observation shows that white light is composed of multiple colours?
A
Oil floating on water showing colour bands
B
A prism separating white light into a spectrum
C
Sunlight reflected off water
D
A glass of water looking clear
Correct Answer: Option B — A prism separating white light into a spectrum
Explanation:
Passing white light through a glass prism causes dispersion splitting it into a visible spectrum of colours from red to violet demonstrating that white light contains multiple wavelengths.