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प्रश्न
Out of blue and red light which is deviated more by a prism? Give reason.
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उत्तर
Between blue and red light, blue light is deviated more by a prism. This is because the wavelength of blue light is smaller than that of red light. Therefore, the speed of blue light is lower than that of red light in a medium.
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संबंधित प्रश्न
Plot a graph to show the variation of the angle of deviation as a function of the angle of incidence for light passing through a prism. Derive an expression for the refractive index of the prism in terms of angle of minimum deviation and angle of the prism.
A ray PQ incident normally on the refracting face BA is refracted in the prism BAC made of material of refractive index 1.5. Complete the path of ray through the prism. From which face will the ray emerge? Justify your answer.
For any prism, prove that :
'n' or `mu = sin((A + delta_m)/2)/sin(A/2)`
where the terms have their usual meaning
If three identical prisms are combined, is it possible to pass a beam that emerges undeviated? Undispersed?
A certain material has refractive indices 1.56, 1.60 and 1.68 rfor red, yellow and violet lightespectively. (a) Calculate the dispersive power. (b) Find the angular dispersion produced by a thin prism of angle 6° made of this material.
In a regular prism, what is the relation between angle of incidence and angle of emergence when it is in the minimum deviation position?
What is meant by the dispersive power of transparent material?
How does the angle of minimum deviation of a glass prism vary if the incident violet light is replaced by red light?
Define angular dispersion.
For any prism, obtain a relation between the angle of the prism (A), the angle of minimum deviation (δm) and the refractive index of its material (μ or n).
