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प्रश्न
Explain with the help of a diagram how sunlight is polarised by scattering through atmospheric particles ?
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उत्तर
Unpolarised light scattering from air molecules shake its electrons perpendicular to the direction of the original ray. The scattered light therefore has a polarisation perpendicular to the original direction and none parallel to the original direction.
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संबंधित प्रश्न
How is linearly polarised light obtained by the process of scattering of light. Find the Brewster angle for air – glass interface, when the refractive index of glass = 1.5.
Distinguish between unpolarized light and linearly polarized light
Draw a graph showing the variation of intensity (I) of polarised light transmitted by an analyzer with the angle (θ) between polariser and analyzer.
Distinguish between unpolarised and linearly polarised light.
Explain briefly how sunlight is polarised by scattering through atmospheric particles.
What is an unpolarized light? Explain with the help of suitable ray diagram how an unpolarized light can be polarized by reflection from a transparent medium. Write the expression for Brewster angle in terms of the refractive index of denser medium.
If the angle between the pass axis of polarizer and the analyser is 45º, write the ratio of the intensities of original light and the transmitted light after passing through the analyser.
Explain how an unpolarised light gets polarised when incident on the interface separating the two transparent media.
How will you identify with the help of an experiment whether a given beam of light is of polarized light or of unpolarized light?
Distinguish between unpolarized and linearly polarized light.
