To find the event that describes why prism separates white light into seven colours.
- Interference
- Fluorescence
- Diffraction
- Refraction
Answer to Problem 40R
Option d is the correct answer.
Explanation of Solution
Introduction: The type of wave carrying energy through matter and/or space is known as light. Light waves carry radiant energy.
Prism is a structure which is three-dimensional and has two faces namely parallel and congruent.
When a white light is passed through a triangular prism, it refracts light two times. Firstly, when the light enters the prism and secondly when the light leaves the prism or re-enters the air. The
Option a is incorrect. Interference is a pattern which occurs when two waves are superimposed.
Option b is incorrect. Fluorescent light is light produced by using phosphorus to convert UV
Option c is incorrect. If the size of the wavelength of a wave is same as the side of any object through which a wave is being diffracted, then diffraction is noticeable.
Conclusion: Hence, when white light enters a prism, each colour of light is bent a different amount and white light will split into the different colours of light.
Chapter 12 Solutions
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
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