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Question
A physicist shines coherent light through an object, A , which produces a pattern of concentric rings on a screen, B. A is most likely:
A physicist shines coherent light through an object, A , which produces a pattern of concentric rings on a screen, B. A is most likely:
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Solution
The correct option is D A sheet with a pinhole
A polarisation filter will polarise the light , i.e restricts the vibrations of electric vector of light in one plane perpendicular to the propagation of light , therefore no rings are found on screen .A single or multiple slit will produce bands on the screen due to diffraction.A prism will make dispersion pattern on the screen.But a pinhole in a sheet will produce concentric bright and dark rings on the screen due to its circular shape , the phenomenon of diffraction is the reason of this pattern .
A polarisation filter will polarise the light , i.e restricts the vibrations of electric vector of light in one plane perpendicular to the propagation of light , therefore no rings are found on screen .
A single or multiple slit will produce bands on the screen due to diffraction.
A prism will make dispersion pattern on the screen.
But a pinhole in a sheet will produce concentric bright and dark rings on the screen due to its circular shape , the phenomenon of diffraction is the reason of this pattern .
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