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प्रश्न
Rainbow is a beautiful natural phenomenon. It is the combined effect of a natural three processes together produced by light. Write it into the circle.
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उत्तर
Rainbow-
- Refraction
- Dispersion
- Total internal reflection
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संबंधित प्रश्न
Define the term dispersion of white light.
In the formation of spectrum of white light by a prism:
which colour is deviated most?
What is spectrum? What is the name of glass shape used to produce a spectrum?
Describe how you could demonstrate that white light is composed of a number of colours.
The colour of white light which suffers the maximum bending (or maximum refraction) on passing through a glass prism is:
(a) yellow
(b) orange
(c) red
(d) violet
A ray of light moving from an optically rarer to a denser medium
How does the speed of light determine the optical density of a medium?
Draw a labeled ray diagram to illustrate the dispersion of a narrow beam of white light when it passes through a glass prism.
Complete the ray diagram given below to show the nature of light produced on the screen.
The completed ray diagram is as shown below:
A wave has wavelength 50Å of name the wave.
A student has to trace the path of a ray of light through a glass prism. List four precautions he should observe for better results.
Distinguish between an impure spectrum and a pure spectrum.
Write the range of wavelength of the ultraviolet spectrum.
In the figure, a beam of light consisting of three colours blue, red, and yellow is incident on a prism and on a rectangular glass block respectively. Complete the diagram by drawings of the refracted and emergent rays.
The sunlight can be split into its constituent colors using ______.
The splitting of white light into its component colours is called ____________.
A prism of refractive index `sqrt2` and refracting angle A produces minimum deviation δm of a ray on one face at an angle of incidence 45°, The values of A and δm are, respectively ______.
State the colour which bends:
- The most.
- The least while passing through a glass prism.
