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प्रश्न
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?
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उत्तर
The colour of the emergent ray will be green. A prism does not change the colour of light. It simply disperses white light into its constituent colours.
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संबंधित प्रश्न
A student is observing a diagram showing the path of a ray of light passing through a glass prism. He would find that for all angles of incidence the ray of light bends:
Draw a ray diagram to explain the term angle of deviation.
What happens when a ray of ordinary light is passed through a triangular glass prism?
Draw a diagram to show the refraction of light through a glass prism. On this diagram, mark
(i) incident ray
(ii) emergent ray, and
(iii) angle of deviation.
Which of the following colour of white light has the least wavelength?
(a) red
(b) orange
(c) violet
(d) blue
Which is optically denser: water or air? Give reason
Define the term dispersion of light.
Explain the cause of dispersion of white light through a prism.
The splitting of white light in to seven colors is called ______.
State True or False:
"Wavelength of red light is close to 700 nm.”
