White Light

White Light

Spectrum & dispersion

Poll

Which scientist was the first to show that light is made up of many colours

Multiple Choice

Why is the spectrum of light separated into its components of color when white light is directed to a prism?

• Because light reflects off the prism's surface

• The incident white light refracts and separates into its constituent colors

• The white light is absorbed by the prism, separating its colors

• The light speeds up as it moves from air into the denser plastic material

Multiple Select

Which of the following provides evidence for the fact that white light is made up of constituent colours. Check all that apply

• Spinning a colour wheel

• Viewing a penny in a glass of water

• Passing light through a triangular prism

• Shining different colours of light onto a white surface

Multiple Choice

This is the example of dispersion of light

• sky looks bright orange in the evening

• shadow

• Pool seems shallower

• rainbow

Multiple Choice

Why are the component colours in a rainbow seen when light passes through a glass prism?

• phenomena of scattering of light

• phenomena of dispersion of light

• phenomena of reflection of light

• phenomena of diffraction of light

Fill in the Blanks

Dispersion is the separation of white light into its constituent colours due to

.

Multiple Choice

The spectrum of white light contains which combination of colours listed below?

• red, orange, yellow, green, blue, purple

• red, orange, yellow, green, blue, indigo, violet

• red, orange, yellow, cyan, magenta