What is the relationship between colour and wavelength for light?
A)Wavelength increases from blue light to red light.
B)Wavelength decreases from blue light to red light.
C)All colours of light have the same wavelength.
D)Wavelength depends on intensity, not colour.

Question

Quizplus · Accepted Answer

There is a direct relationship between colour and wavelength for light. Wavelength is the distance between two consecutive peaks or troughs of a wave. Shorter wavelengths correspond to higher frequencies and higher energy, while longer wavelengths correspond to lower frequencies and lower energy. Blue light has a shorter wavelength than red light, so as we move from blue to red light, the wavelength increases. Therefore, option A is correct.

What Is the Relationship Between Colour and Wavelength for Light