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Question
The wavelength range of white light is ______.
Options
4000 nm to 8000 nm
40 nm to 80 nm
400 nm to 800 nm
4 nm to 8 nm
10 to 400 nm
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Solution
The wavelength range of white light is 400 nm to 800 nm.
RELATED QUESTIONS
When a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again? Explain your answer.
The coloured light having the maximum speed in glass prism is ______.
An object AB is placed in front of a convex lens as shown in fig. 4. Complete the ray diagram and obtain the image formed and state the nature of the image.
Differentiate between a glass slab and a glass prism.
Match the Columns:
| Column ‘A’ | Column ‘B’ |
| The wavelength of red light | (a) 600 nm |
| (b) 700 nm | |
| (c) 500 nm |
Say TRUE or FALSE
Rainbow is formed by dispersion of which light by water drops
The phenomena of light involved in the formation of rainbow are ______.
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When sunlight passes through water droplets in the atmosphere it gets dispersed into its constituent colours forming a rainbow. A similar phenomenon is observed when white light passes through a prism.
Instead of sunlight, a green-coloured ray is passed through a glass prism. What will be the colour of the emergent ray?
