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marvinsductant6710
25.04.2020 •
Physics
The indices of refraction for red, green, and violet light in glass are nred =1.520, ngreen = 1.526, and nviolet = 1.538. When a ray of light passes through a transparent slab of glass, the emergent ray is parallel to the incident ray, but can be displaced relative to it. For light passing through a glass slab that is surrounded by air, which color is displaced the most?
(a) All colors are displaced equally.
(b) Red
(c) Green
(d) Violet
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Ответ:
(d) Violet
Explanation:
The formula for lateral displacement = t sin ( i - r ) / cos r
where t is thickness of slab , i is angle of incidence , r is angle of refraction
refractive index = sin i / sin r
if refractive index is high , for given i , angle of r will be less
i - r will be more , hence sin( i - r ) will be more
cos r will be less ( larger the angle , lesser will be its cos value )
sin( i - r ) / cos r will be more
lateral displacement will be more .
hence higher refractive index results into greater displacement .
So violet ray will undergo maximum displacement .
Ответ:
Your f8cking depressed is what you are
Explanation: