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प्रश्न
Give a reason, why the violet colour of white light deviated most and red colour of white light deviated least.
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उत्तर
The reason is that the speed of violet light in glass is least while that of red light is most. Since. Refractive index of glass = speed of light in air/speed of light in the glass, so the refractive index of glass (the material of prism) is most for violet light and least for the red light. Hence, the violet light has deviated most and red light is deviated least.
संबंधित प्रश्न
In following figure shows a thin beam of white light from a source S striking on one face of a prism.
Complete the diagram to show effect of prism on the beam and to show what is seen on the screen.
In following diagram shows a thin beam of white light from a source S striking on one face of a prism.
A slit is placed in between the prism and the screen to pass only the light of green colour. What will you then observe on the screen?
In following diagram shows a thin beam of white light from a source S striking on one face of a prism.
What conclusion do you draw from the observation in part (b) above?
If a monochromatic beam of light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?
(i) Draw a diagram to show the splitting of white light by a prism into its constituent colour.
(ii) Draw another diagram to show how the colours of spectrum of white light can be combined
to give the effect of white light.
Draw another diagram to show how the colours of spectrum of white light can be combined to give the effect of white light.
Light of different colours is deviated through different angles by a prism. Explain the reason.
Name the radiation of a wavelength longer than 8 × 10−7 m.
Draw a neat diagram to show the arrangement you would use to project a pure spectrum of white light on a screen.
Which colour of white light travels slowest, in glass?
