🌈 Dispersion and Colour
Explore how light separates into its component colours through dispersion. This quiz covers the physics of prisms, rainbows, refractive index, the visible spectrum, and how our eyes perceive colour. By the end, you'll understand why white light breaks apart and how colours combine. **What you'll learn:** - How prisms and rainbows separate white light into spectrum colours - The relationship between wavelength, frequency, and colour - Why dispersion occurs due to varying refractive indices - The order of visible spectrum (ROYGBIV) - Additive and subtractive colour mixing
Questions in this quiz
Answers hidden — play to find out.
- Question 1
What is dispersion in optics?
- Question 2
Red light has a longer wavelength than violet light.
- Question 3
Which of the following best explains why a prism separates white light into colours?
- Question 4
In the visible spectrum, which colour has the highest frequency?
- Question 5
A rainbow is formed by dispersion of sunlight in water droplets.
- Question 6
What does ROYGBIV represent?
- Question 7
How is the refractive index related to dispersion?
- Question 8
White light is a mixture of all visible colours combined.
- Question 9
Which colour is refracted the most when white light passes through a prism?
- Question 10
What is additive colour mixing?
- Question 11
In subtractive colour mixing, what are the primary colours?
- Question 12
Colour is determined solely by the wavelength of light.
- Question 13
Why does red light refract less than blue light in a glass prism?
- Question 14
What happens when you overlap red and green light in an additive colour system?
- Question 15
The order of colours in a rainbow is always red on the inside and violet on the outside.